15th March: CMAAO COVID 19 PANDEMIC
151
countries, deaths to cross 7000 and 1500 in Italy, 2 deaths in India
Dr KK Aggarwal
President CMAAO, HCFI and Past National President
iMA
India
States:
13, (84 cases MOH 14.03.2020 at 04:55 PM)
Total cases 100 (worldmeter), Serious:
Zero, Death: 2, Community spread: zero; Super spreader: Zero; Men more than
women; Delhi age group: 45, 25,52,25, 66
ICMR: Testing across 52 labs (ICMR-National
Institute of Virology, Pune is the apex laboratory for reconfirmation of any positive
samples); additionally, 57 other labs to help sample collection
Countries 151
Continents all except Antarctica
Cases 156520 cases (5% extra if CT diagnosis is taken)
Deaths 5835 deaths
Recovered: 74766
Currently infected: 69045
Mild: 68978 (92%)
Serious 5888 (8)
Likely deaths (5835 + 5888 x 15 = 883 ) = 6718
Likely deaths in Italy: > 1500
Deaths in 46 Countries
> 75,000 cases outside China
Hot spots in China, Iran, Italy, South Korea, France, Spain, Germany,
Switzerland, Norway Sweden, Denmark. Netherland, japan, UK and USA with >47,000
cases
COVID Sutras
Public health emergency of international
concern declared within a month after the first reported cases, as a result of
the signs of human-to-human transmission outside China (30th January)
Global risk raised to the highest level
of alert (28th February)
10th March: A near uneven
controllable pandemic
Disease: Coronavirus disease or COVID-19
Virus: SARS-CoV-2
virus (names used when communicating with the public “the virus
responsible for COVID-19” or “the COVID-19 virus”)
Symptoms: fever, tiredness, and dry cough (most common); only cough (pollution), cough and cold
(allergy), fever with sore throat in children (streptococcal), fever above
100.4 with cough and cold
(flu), fever with cough and breathlessness (corona like illness), cough > 2 weeks rule out TB
(flu), fever with cough and breathlessness (corona like illness), cough > 2 weeks rule out TB
No fever no flu
no corona; No breathlessness no
seriousness, no breathlessness no oxygen requirement no seriousness
Corona
Namaste better than elbow touch
Hygiene: Maintain social distance 1 meter from a person with
cough and cold; wash hands (Remember the mnemonic SUMAN K - seedha ulta mutthi
anghuta nakhun kalai) with soap and water or 70% alcohol sanitizer, disinfect
surfaces, use surgical masks, if infected (symptoms especially
coughing or looking after someone who may have COVID-19.
All doctors: to carry SPO2 monitor to detect early serious cases
Suspect a corona
case: Fever or signs/symptoms of
lower respiratory illness (cough or shortness of breath) AND any person,
including health care workers who has had close contact with a lab confirmed COVID-19
patient within 14 days of symptom onset.
· Fever and signs/symptoms of a lower respiratory illness
(cough or shortness of breath) requiring hospitalization AND a history of
travel from affected COVID 19 countries within 14 days of symptom onset
· Fever with severe acute lower respiratory illness (SARI,
pneumonia, ARDS) requiring hospitalization and without alternative explanatory
diagnosis (e.g., influenza) AND no source of exposure has been identified.
· A suspect case for whom testing for 2019-nCoV is
inconclusive or for whom testing was positive on a pan-coronavirus assay
Confirmed case:
Lab confirmed irrespective of
clinical signs and symptoms.
Epidemic cycle: First case, first cluster, first community spread
Epidemic cycle: Contain, Delay, Research and Mitigate
What to
do: If you have fever with dry cough
with or without breathlessness self- isolate (quarantine yourself at home),
wear surgical mask, do frequent hand wash and call your doctor.
Isolate all infected
patients. They need to wear surgical
mask.
Isolate
(quarantine) at home all close
contacts, call them twice daily, counsel them, no testing if no symptoms, test
if symptoms develop.
Avoid cohort (clusters)
of asymptomatic close contacts without
masks (Diamond Princess: 696 in cohort ended with 23% getting the infection and
7 deaths, 32 still serious)
Treatment: Avoid
self-medication; start Tamiflu when symptoms appear and stop
if COVID 19 is negative.
CDC: Any
American can be tested, no restrictions, subject to doctor’s orders
It’s not flu: It’s a lung disease, not a stuffy nose disease. Clinically
all have fever, 75% have cough; 50% weakness; 50% breathlessness with low total
white count and deranged liver enzymes; runny nose only shows up in 4% cases;
20% need ICU care and 15% of them are fatal. Treatment is symptomatic though
anti-viral (remdesivir) and anti-HIV
drugs (lopinavir/ritonavir) have shown some efficacy.
Retirees had the highest case fatality rate at 5.1%.
Mild means a
positive test, fever, shortness of
breath, and possibly even pneumonia, but not so bad that you need to be
hospitalized or needs oxygen.
Severe: Once you need oxygen, then you move into the severe
category.
Color Coding by
China: Red code: Remain in quarantine
for 14 days; Yellow code: Stay indoors for 7 days; Green
code: Free to move about as they please.
Avoid mass
gatherings: > 1000 people, in
smaller gathering first ask “I hope no one is here with fever and cough, if
kindly leave or wear surgical mask”
Travel
- Indian citizens are advised to refrain from travel to China,
Iran, Republic of Korea, Italy & Japan and advised to avoid
non-essential travel to other COVID-19 affected countries.
- All international
passengers entering into India are required to furnish duly filled
self-declaration form (including personal particulars i.e. phone no. and
address in India) to Health Officials and Immigration officials and
undergo Universal Health Screening at the designated health counters at
all points of entry.
Dos: hand
washing, avoid sick people, avoid touching eyes, nose and mouth with unwashed
hands, cover nose and mouth with tissue when coughing or sneezing.
Don’ts: Avoid
close contact if cough and fever, do not touch eyes, nose and
mouth, avoid spitting in public
COVID 19
Possibly behaves like
SARS, but more contagious and less lethal
Near
pandemic, PHEIC
Respiratory
virus not a GI virus
56% are males
Deaths rate males 2.8% females 1.7%
Causes
mild illness in 82%
Severe
illness in 15%
Critical
illness in 3%
Death 3.4 % (March
3)
Deaths: 15% serious
cases
Deaths 71% with
comorbidity
71%
deaths are in patients with comorbidity due to cytokine storm. [72,314 Chinese cases, largest patient-based study, JAMA)
CAD patients most
at risk [CAD 10.5%, Diabetes 7.3%, COPD 6.3%, HT 6%, Cancer 5.6%, no
pre-existing disease (0.9%)
Health care
provider infections China 3.8% 0.3% deaths. Singapore Nil
Deaths 10% in Iran
(under reporting)
Doing S Korea (0.6%)
doing more tests in mild cases
Affects
all sexes but predominately males 56%
Age;
87% (30-79), 10% (< 20), 3% (> 80)
Mean
time to symptoms 5 days
Mean
time to pneumonia 9 days
Mean
time to death 14 days
Mean
time to CT changes 4 days
3-4 reproductive
number R0 (flu 1.2, SARS 2)
Epidemic doubling time 7.5 days
Doubling
time in Korea 1 day probably due to super spreader
Tripling
time in Korea 3 days
Positivity
rate% (UK 0.2, Italy 5, France 2.2, Austria 0.6, USA 3.1)
Origin:
Probably from bats (mammal; central hosts), snakes and pangolins
(intermediate hosts); possible animal sources of COVID-19 not yet been
confirmed
Spread: Large droplets
Spread: Predominately from people having LRTI
Precautions:
Standard droplet for the public and close contacts; air borne for healthcare
workers dealing with secretions.
Incubation
period days 2-14 days
Mean
Incubation period: 5.2 days
Recover
time Mild cases 2 weeks
Recovery
time sever cases 4-6 weeks
Case
fatality 80 + 14.8%
Case
fatality 70-79 = 8%
Case
fatality 60-69 = 3.6%
Case
Fatality 50-59 = 1.3%
Case
fatality 40-49 – 0.4%
Case
fatality 10-39: 0.2%
Case
fatality < 9 years: nil
What is the case fatality of other
viruses?
MERS
34% (2012, killed 858 people out of the 2,494 infected)
SARS
10% (Nov. 2002 – Jul. 2003, originated from Beijing, spread to 41
countries, with 8,096 people infected and 774 deaths).
Ebola
50%
Smallpox
30-40%
Measles
10-15% developing countries
Polio
2-5% children and 15-30% adults
Diphtheria
5-10%
Whooping
cough 4% infants < 1yr, 1% children < 4 years
Swine
flu < 0.1-4 %
Seasonal
flu 0.01%
Number
of flu deaths every year: 290,000 to 650,000 (795 to 1,781 deaths per day)
Spread
· Person-to-person through
respiratory secretions via mucus membrane within a distance of
1 meter
1 meter
· Person to person through hand
shakes
· Fabric, carpet, and other soft
surfaces: Currently,
there’s no evidence.
· Non porous surface 1-2 days and porous surface 8-12
hours
· Casual exposure: Human to human contact requires
prolonged contact (possibly 10 minutes or more) within 3 to 6 feet.
· Currency notes: The central banking authorities of
China are disinfecting cash to stop the spread
· Biometric attendance: Suspended in India
· Kissing: Scenes banned
in movies in China. France cut back on “la bise
· Breath
analyser for alcohol: Kerala exempted air crew
· Public gatherings: Affected countries have banned
death ceremonies, people gathering.
· Uncovered eyes: The transmission is through mucus
membrane contamination. One case got infected while using gown, but eyes not
covered.
· Eating meat, fish or
chicken: It’s
not a food-borne illness but a respiratory illness. It cannot occur by eating
any food or meat. However, it is always advised not to touch raw meat, eat raw
meat or eat partially cooked meat to prevent meat related food borne illnesses.
Eating fish and chicken is safe.
· Eating snakes or drinking bat
soups: Eating
wild animals cannot cause it. Handling their secretions can cause it.
· Handling wild animals or their
meat: Yes,
if their secretions are handled by the animal handlers.
· Semen: We do not know yet for the new
corona virus (in patients infected with Ebola, the virus may persist for months
in the testes or eyes even after recovery and can infect others and
keep the epidemic going.
· Sexual transmission like Ebola and
Zika infected cases: No evidence yet.
· Goods from affected areas: People receiving packages from
affected areas are not at risk
· Pipes: Ventilation systems connect one
room to the next. There has been previous concern that the coronavirus can spread
through pipes
· Stress: Stress and anxiety are known
to suppress the immune system, making people more susceptible to contracting
the virus.
· Patients without symptoms: Both SARS-CoV and MERS-CoV infect
intrapulmonary epithelial cells more than cells of the upper
airways. Consequently, transmission occurs primarily from patients with
recognized illness and not from patients with mild, nonspecific
signs. Though NEJM has reported a case of COVID 19 infection acquired
outside of Asia in which transmission of mild cases appears to have occurred
during the incubation period in the index patient but the same has been
challenged now.
· Corona beer: It has nothing to do with
coronavirus. It’s a brand of beer.
· Minimal risk in plane: window seat
· Airports more at risk: pipes, AC, International
travelers, close surface contact, wear gloves when in doubt
· All TV panelists: wear disposable earphones
·
Formula of C: Corona; COVID; CHINA Pneumonia
(early name); CONTAINMENT policy; break CHAIN of transmission; 1st Case; 1st
Cluster; 1st Community spread; New Case; Avoid COHORT of CLOSE CONTACTS; CAP
price of essential items; CONTACT tracing; CARE of the elderly, CONVINCE
patients to wear surgical masks; COUGH not to be ignored, CDC guidelines; CHAOS
avoid; CHLOROQUINE can be tried; COLOR CODING (Red, Yellow, Green); Stay
CONNECTED with updates; Know COUNTRIES not affected; CRITICAL cases; No CONTACT
policy; CHECK list of hospitals; CHECK points ( all port entries); COLLECTIVE
action; CONTROLLED measures; CONDOM: No evidence that it protects; CONGENITAL:
No evidence of congenital Covid 19; CLEARING of antigen; COMPLAIN:
Section 270 of IPC; Do not CRTICISE; CALM during illness; COMMUNICATION
is the key; COMMITMENT of government; CAD patients are highest risk; CHILDREN
are less likely to die; COLD blooded animals are not the source; CLAIM of
insurance should not be cancelled
What is coranxiety?
Anxiety about falling ill and
dying; avoiding or not approaching healthcare facilities due to fear of
becoming infected during care; fear of losing livelihood; fear of not being
able to work during isolation; fear of being dismissed from work if found
positive; fear of being socially excluded; fear of getting put into quarantine;
fear of being separated from loved ones and caregivers due to quarantine;
refusal to take care of unaccompanied or separated minors; refusal to take care
of people with disabilities or elderly because of their high-risk nature;
feeling of helplessness; feeling of boredom; feeling of depression due to being
isolated; stigmatization of being positive infection; possible anger and aggression
against government; unnecessary approaching the courts, possible mistrust on
information provided by government; relapses of mental illness in already
mentally-ill patients; overstress on people to cover work of infected
colleagues, quarantined for 14 days and insufficient or incomplete information
leading to myths and fake news
If the anxiety is not tackled what
will happen?
· Healthy people will buy masks, get
the tests done, get hospitalized and exhaust resources meant for persons who
are actually at high risk.
· The younger population has more
fear of getting quarantined for 14 days or fear of losing their beloved elderly
ones with comorbid conditions.
Legal
- Despite CDC protest, 14
Americans infected with coronavirus on the Diamond Princess cruise
ship shared a plane back to the US with healthy passengers, separated by
plastic sheeting. (New York Post)
- A US court temporarily
blocked government from sending up to 50 people infected with a new virus
from China to a Southern California city for quarantine after local
officials argued that the plan lacked details about how the community
would be protected from the outbreak.
- Hong Kong police: nabbed a
part-time security guard at a shopping mall for allegedly writing on
social media that multiple staff members had caught a fever and gone on
sick leave. The messages "caused panic" and helped "breed
paranoia".
- Singapore: Severe penalties
for non-compliance of the quarantine order, including fines or jail time.
- Saudi Arabia will impose a
fine of up to 500,000 riyals ($133,000) on people who do not disclose
their health-related information and travel details at entry
points
- Italy PM puts citizens on
lock down and threatens them with a fine (206 euros; around £178) or jail
(3 months) if they leave quarantine zones (Daily Mail UK)
- IPC: Section 270:
Malignant act likely to spread infection of disease dangerous to life.—Whoever
malignantly does any act which is, and which he knows or has reason to
believe to be, likely to spread the infection of any disease dangerous to
life, shall be punished with imprisonment of either description for a term
which may extend to two years, or with fine, or with both.
- Epidemic Disease
Act, Essential Commodities Act, NLEM, Municipal corporation acts, state
public health acts
- My rights to be tested
Treatments
- Throat swab or LRTI swab in viral VTM media
- CT scan more sensitive than RT-PCR for diagnosis (Feb.
26, Radiology)
- No drug approved in India
Lopinavir plus Ritonavir promise in lab in SARS. - Lopinavir plus ritonavir plus recombinant interferon beta-1b
in MERS.
- Scientists in Australia have reportedly
recreated a lab-grown version of COVID 19.
- Chloroquine had potent antiviral activity against the
SARS-CoV, has been shown to have similar activity against HCoV-229E in
cultured cells and against HCoV-OC43 both in cultured cells and in a mouse
model.
- In Thailand, oseltamivir along with lopinavir and ritonavir
(both HIV drugs) has been used successfully.
- DCGI approved the "restricted use" of a combination of
drugs (lopinavir and ritonavir)
- Remdesevir trials 6th Feb in China and late February in
USA
- Russia and China drug: Arbidol, an antiviral drug used in
Russia and China for treating influenza, could be combined with Darunavir,
the anti-HIV drug, for treating patients with the coronavirus (COVID 19
shares some similarity to HIV virus also)
- PVP-I mouthwashes and gargles have high potency for viricidal
activity against hepatitis A and influenza, MERS and SARS
- In SARS, people were put-on long-term steroids ending with
immunosuppression and late complications and death. The current protocol
is no or short-term treatment.
- Pneumococcal vaccine and Hib vaccine do not provide protection
- Regularly rinsing the nose with saline can help people recover
more quickly from the common cold and dryness can protect one from
touching the nose.
- Mouthwash can eliminate certain microbes for a few minutes in
the saliva in your mouth but cannot kill the virus
- There is no evidence that eating garlic protects people
from COVID 19.
- Sesame oil does not kill the new coronavirus.
- Chemical disinfectants that can kill the COVID 19 on surfaces:
Bleach/chlorine-based disinfectants or solvents, 70% ethanol, peracetic
acid and chloroform.
- Antibiotics do not work against viruses.
- 0.1% bleach is good for surface disinfection
- Take 70 ml of 100% isopropyl alcohol and add 30 ml aloe vera gel or PEG and make
sanitizer at home.
Is it in a pandemic state?
·
WHO:
Outbreak
is “getting bigger”, can spread worldwide and is “literally knocking at the doors?”
· 21st Feb CDC: Pandemic
Alert and a tremendous Public Health Threat.
· 24th Feb: Phase of preparedness for a potential pandemic.
· 25th Feb: Preparing for community transmission of the COVID-19
coronavirus
· Feb 29: WHO
raises Global Risk from Coronavirus to the highest level of alert “We have now increased our assessment of
the risk of spread and the risk of impact of COVID-19 to very high
at global level,”
· WHO: “If we don’t act... that may be a future
that we have to experience,” “a lot of
the future of this epidemic is in the hands of ourselves?” [
· 29th Feb first US death
in a patient with a community spread case.
What is a pandemic?
· WHO: "the
worldwide spread of a new disease" and ability to spread from person to person?
· CDC: Spreads
across "several countries or continents, usually affecting a large number
of people.
· UK's Health and
Safety Executive: Virus markedly different from recently circulating strains
and humans have little or no immunity to it.
What is
the incubation period?
· Variable, 2-14 days (mean 3 based on
1,324 cases, 5.2 days based on 425 cases, 6.4 days in travellers from Wuhan)
· 24
days has been observed.
WHO said it could reflect a second exposure rather than a long incubation
period. Hubei Province local government on Feb. 22 has reported a case with an
incubation period of 27 days.
Is it a
Zoonotic disease?
Zoonotic and linked to
Huanan Seafood Wholesale Market as 55% with onset before January 1, 2020 were
originated there but only 8.6% of the subsequent cases. The Chinese government
has banned the wildlife trade until the epidemic passes.
Is it linked to bats?
It is closely related to several bat
coronaviruses. Bats are the primary reservoir for the virus. SARS-CoV was
transmitted to humans from exotic civet animals in wet markets, whereas
MERS-CoV is transmitted from camels to humans. In both cases, the
ancestral hosts were probably bats. Snakes and pangolins have been thought to
be the intermediate host. One thing is clear the origin is from a mammal.
What
are different types of transmissions?
· Droplets, large > 5-micron
organisms, flu, corona.
· Air borne, < 5-micron organisms,
TB, chicken pox, measles.
· Contact on the surface: COVID 19,
SARS, Flu [It may be possible
that a person can get COVID-19 by touching a surface or object that has the
virus on it and then touching their own mouth, nose, or possibly their eyes]
Which
are more important droplet precautions or contact precautions?
Both.
In community spread contact precautions becomes more important. In SARS in Hong
Kong the contact precautions worked more than the droplet precautions.
Can it
transmit from pregnant mother to the baby?
No or little evidence to
support the possibility of vertical transmission from the mother to the baby.
[Lancet Feb 20]
Which
part of the respiratory tract it effects?
·
Both upper and lower respiratory tract.
·
URTI causes fever with sore throat and
mild cough.
·
LRTI causes fever with cough, and
breathlessness.
·
Which is
more contagious LRTI or URTI?
·
COVID 19
uses the same cellular receptor as SARS-CoV (human angiotensin-converting
enzyme 2 [hACE2]), so transmission is expected more after signs of
lower respiratory tract disease develop.
·
COVID 19 grows better in primary human airway
epithelial cells than in standard tissue-culture cells, unlike SARS-CoV or
MERS-CoV. It is likely that COVID 19 will behave more like SARS-CoV.
Why LRTI is more infectious?
· SARS is high [unintelligible] kind
of inducer. This means that when it infects the lower part of the lung, the
body develops a very severe reaction against it and leads to lots of
inflammation and scarring.
· In SARS after the first 10 to 15
days it wasn’t the virus killing the patients it was the body’s reaction. Is
this virus in the MERS or SARS kind picture or is this the other type of virus
which is a milder coronavirus like the NL63 or the 229? It may be the mild
(unintelligible) kind inducer. [Dr John Nicholls University of Hong Kong]
What is
the treatment?
Symptomatic
though chloroquine, anti-viral & anti-HIV drugs have shown some efficacy.
What do you mean by Public
Health Emergency of International Concern?
COVID 19 was declared as
PHEIC on 30th Jan 2020 which means it is mandatory to report to WHO
each human and animal case.
Is it the first time that a
PHEIC has been declared?
· No, Prior 5 PHEIC’s ARE
·
26th April 2009 - 10th August 2010
Swine flu
· May 2014 Polio: resurgence of wild polio
· August 2014 Ebola: It was the first PHEIC in a resource-poor setting
·
Feb 1, 2016 to 18 Nov 2016 Zika
·
2018–20 Kivu Ebola
What is Public Health Emergency
of a state?
· Kerala declared it when it had three
cases and later lifted it on 12th Feb.
· San Francisco declared it even
without a case on 26th February.
· Washington declared a state
emergency on 1st March
Did China delay in reporting
of cases?
· While there were
300 cases and 5 deaths with SARS before the Chinese government reported it to
the World Health Organization, there were only 27 cases and no deaths with
COVID-19 before it was reported to that agency.
·
Chinese
authorities-imposed lockdown measures on ten cities in an unprecedented effort
to contain the outbreak of corona virus and built a specialized hospital
[Huoshenshan Hospital] in just 10 days as part of China’s intensive efforts to
fight corona virus. A second facility with 1,500 beds is also being opened.
During SARS in 2003, a facility in Beijing for patients with that viral disease
was constructed in a week.
What is no contact
policy?
Greeting people by
namaste, bowing or elbow touch. Corona Namaste is a no contact policy in public. Let’s not shake hands, IMA and
CMAAO promotes the concept of Corona Namaste.
Why the cases did not occur
in other countries in the initial phase?
Initial serious illness in
other countries were less as patients with breathlessness were unlikely to
board and patients will mild illness or asymptomatic illness are less likely to
transmit infections. Foer transmission you require cough secretions or nasal
discharge.
What is a biphasic
infection?
Coronavirus
follows what is known as a biphasic infection: the virus persists and causes a
different set of symptoms than observed in the initial bout. The recovered
person, too, can develop other symptoms, including insomnia and neurological
problems, said Angela Rasmussen, a virologist at Columbia University.
What is a spreader and a super spreader?
Spreader: An infected person with normal
infectivity.
Super spreader
· An infected person
with high infectivity, can infect hundreds of cases in no time. What cause a
person to become super spreader is not known, HIV person becomes a super
spreader if he or she is coinfected with STI.
· The examples are
the first case in Wuhan, a female in the S Korea Daegu fringe Christian group Shincheonji Church where she
(61 years) infected more than 51 were infected.
· In the church people shout out 'amen' after every sentence
the pastor utters, pretty much every few seconds. And they do that at the top
of their lungs, sending respiratory droplets flying everywhere.
What can be the cause of a cluster of cases
or a hot spot without a super spreader?
People catching the virus from infected surfaces.
We don’t know how long the germs stay on surfaces, but similar viruses can live
for a week.
What are the various clusters of corona viruses?
·
The largest cluster was the Wuhan itself where over five crore people
were locked down ending up with over 2000 deaths.
·
The second largest lockdown was in Japanese diamond princess ship where
over 3000 patients were locked up and 23% of them developed COVID 19 virus
infection.
·
The third example the cult church in South Korea where one lady infected
with the virus spread it to over 30 people attending the church and she also
infected multiple people in a hospital where she was treated and one person
later died.
·
Shandong province in China reported
that 207 cases of the new coronavirus were reported in Rencheng prison as of
Feb. 20, citing information from the provincial government. A jail in the
Zhejiang province has also reported a total of 34 infections. All of them are
inmates, according to Chinese media. A
jail will behave like a ship and end up with 21% getting infected.
What do you mean by the word
corona?
‘Corona’ means crown or
the halo surrounding the sun. Heart is considered crown and hence coronary
arteries. In electron microscope, it is round with spikes poking out from its
periphery.
What is the composition of
this virus?
It is a single-strand, positive-sense RNA genome ranging from 26 to 32 kilobases in length, Beta corona virus from Corona family.
What are other dreaded corona viruses?
· COVID 19 is one of
the three deadly human respiratory coronaviruses. Others are Severe acute
respiratory syndrome coronavirus [SARS-CoV] and Middle East respiratory
syndrome coronavirus [MERS-CoV]).
· COVID 19 virus is
75 to 80% identical to the SARS-CoV
Where did it originate?
Wuhan, China December 2019.
1st case informed to the world by Dr. Li Wenliang who died on 6th
Feb.
Will this virus survive
heat?
Virus is likely to be killed
by sunlight, temperature, humidity. SARS stopped around May and June in 2003
due to more sunlight and more humidity.
Did
it originate from the WUHAN bio terror lab?
Unlikely,
nobody will procedure bioweapon to be used on themselves or without
simultaneously making an anti-weapon or antidote. It’s a myth that the
virus was part of China's "covert biological weapons programme" and
may have leaked from the Wuhan Institute of Virology and was linked to the
suspension of a researcher at Canada's National Microbiology Lab.
Is it true that China killed 20,000 COVID 19 patients?
It’s a fake news linked to a diversion to a
sex site.
In
initial days does it has high viral load.
Detection of COVID 19 RNA in
specimens from the upper respiratory tract with low Ct values on day 4 and day
7 of illness is suggestive of high viral loads and potential for
transmissibility. [NEJM]
Was Diamond Princess ship
quarantine a successful model?
·
Does not look like as 23% of cases got infected. 705 cases got the virus and 6 deaths and 36
still serious as on 1st march. Would mean 6 + 36x15 = 1-12 cases
will die.
· The people on quarantine are kept
under a 14-day quarantine. If they are placed together and if anyone is
diagnosed during that period, the quarantine will add another 14 days.
· The longer you have several thousand
people cohoused you will continue to propagate waves of infection.
· A better way to quarantine is to
break up these people into smaller groups and quarantine them separately. Why
quarantine children < 15 years when the virus is not risky for them and why
not separate elderly people with comorbid conditions at high risk of deaths and
quarantine them separately in one to one or small groups.
How long was the quarantine
in the ship?
14 days for the passengers
and another 14 days for the crew who took care of the people in the first 14 days.
What are different
ways to control the infection in the
community?
·
Lockdown in China: Unprecedented quarantines across Hubei, locking in about
56 million people, in a bid to stop it spreading. Results 2% deaths,
· Locking of a village in
Vietnam: More than 10,000 people in villages near
Vietnam's capital were placed under quarantine on 13th February after
six cases of the deadly new coronavirus were discovered there. These cases did
not become a hotspot probably there was no super spreader kin those cases. Only
16 cases are so far.
· Kerala model of
containment in India: Hospital one to one quarantine of infected
patients and individual home quarantine of contacts. They could contain the
virus in the state.
Was it correct for India to
have cultural evenings by quarantine people brough from China?
It was risky to allow people
to celebrate and have cultural programs during quarantine. As was seen in India
people dances together with surgical masks during quarantine period,
Is there a role of quarantine
in the sunlight?
Quarantine them like TB
sanitoriums with both sun-balconies and a rooftop terrace where the patients
would lie all day either in beds or on specially designed chairs.
What should one wear
at the triage section of emergency room?
Surgical 3 layered
mask to the patient; Isolation of two beds with at least three feet distance,
Cough etiquette and Hand hygiene for all.
What are different
precautions?
·
Droplet precautions: Three-layer surgical mask
by patients, their contacts and health care workers, in an adequately ventilated
isolation room, health care workers while caring with the secretions should use
eye protection, face shields/goggles. One should limit patient movement,
restrict attendants and observe hand hygiene.
·
Contact
precautions: When entering room - gown, mask, goggles, gloves – remove before
leaving the room; Dedicated equipment/ disinfection after every use; Care for
environment- door knobs, handles, articles, laundry; Avoid patient transport
and Hand hygiene
·
Airborne
precautions when handling virus in the lab and while performing
aerosol-generating procedures: Room should be with negative pressure with
minimum of 12 air changes per hour or at least 160 litres/second/patient in
facilities with natural ventilation. There should be restricted movement of
other people and all should use gloves, long-sleeved gowns, eye protection, and
fit-tested particulate respirators (N95 or equivalent, or higher level of
protection)
What are the precautions for general public?
· Strict self-quarantine
if sick with flu like illness: 2 weeks
·
Wash your hands often and for at least 20 seconds
with soap and water or use an alcohol-based hand sanitizer.
·
Avoid touching:
Eyes, nose, and mouth with unwashed hands.
·
Avoid close contact: (3-6 feet) with people who are
sick with cough or breathlessness
·
Cover your cough or sneeze with a tissue, then
throw the tissue in the trash.
·
Clean and disinfect frequently touched objects and
surfaces.
Which masks for which
patients?
· Surgical 3 layered Masks: For patients
and close contacts
· N 95 Masks: For health care
providers when handling respiratory secretions.
What are the lab tests?
There are two ways to detect
a virus: through the genetic material DNA or RNA or to detect the protein of
the virus. The rapid tests look at the protein. It takes 8-12 weeks to make
commercial antibodies. So right now, for the diagnostics tests they are using
PCR which give you a turnaround in 1-2 hours.
What are false
positive and false negative results?
·
PCR tests may detect remnants of the measles virus months
after people who had the disease stop shedding infectious virus.
·
Negative test can be if the test is done poorly, or
the samples are stored at a temperature at which the virus deteriorates. The
throat swab may also simply miss the virus that is hiding elsewhere in the
body.
·
A virus test is positive if the virus is there on
the swab in sufficient quantities at the time you swabbed the person. A
negative test is not a definitive that there is no more virus in that person.
Can you give an analogy
of a negative test?
A jam jar with
mold on top. Scraping off the surface might give the impression that the jam is
now mold-free, but in fact the jar may still contain mold that continues to
grow.
What samples to collect?
BOTH the upper respiratory
tract (URT; nasopharyngeal and oropharyngeal) AND lower respiratory tract (LRT;
expectorated sputum, endotracheal aspirate, or bronchoalveolar lavage). Use
viral swabs (sterile Dacron or rayon, not cotton) and viral transport media
Can it be done by private
labs?
Not yet in India. In US in January, all testing had to be done
in CDC laboratories. However, on February 4, the US FDA issued an emergency-use
authorization for the CDC's COVID 19 Real-Time RT-PCR Diagnostic Panel, which
allows it to be used at any CDC-qualified laboratory in the United States.
What precautions to take in the lab?
BSL 2 (3 for viral culture labs)
Why pharma companies did not
make SARS vaccine?
· With SARS, in 6 months the virus was
gone, and it never came back. Companies may not spend millions to develop a
vaccine for something which may never come back.
· The UN agencies should have
initiated the development of vaccine against corona virus, SARS or MERS strain,
if that was available, it might have reduced the case fatality of COVID 19.
Can it cause secondary
infection?
Secondary infection, E Coli,
are most likely the cause of deaths of the patients in the Philippines and HK.
Is there any proven treatment?
No
Can dog/pets get the COVID 19 virus?
There is no evidence.
Who is more
vulnerable?
People with
pre-existing medical conditions (such as asthma, diabetes, heart disease)
appear to be more vulnerable to becoming severely ill with the virus.
What
are various fake news?
·
COVID 19
linked to Donald Trump, US intelligence agencies or pharmaceutical
companies.
·
Avoiding
cold or preserved food and drinks, such as ice cream and milkshakes, for
"at least 90 days can help.
·
Experts have been aware of the virus for
years: The virus is not new, its two deadly forma have already caused SERS
and MERS in the world. These types of viruses will keep on coming.
What is the role
of CMAAO and other Medical Associations?
Get prepared for
containment, including active surveillance, early detection,
isolation and case management, contact tracing and prevention of onward
spread of the virus and to share full data with WHO. All countries should emphasise on reducing
human infection, prevention of secondary transmission and international spread.
Intensify IEC activities.
CMAAO IMA FOMA MAMC Recommendations
Prise control of PPE; accreditation of
private labs for testing; private insurance should cover the infection; IEC and
CME activities to be intensified; allow paid leaves for air born and droplet
infections; allow teleconsultations in flu like diseases; CSR funds for vaccine
research; Surgical three-layered masks at public places; Start National program
on respiratory secretions born illnesses; in India incorporate respiratory
infection control under swatch bharat
What is uncomplicated
illness?
Patients with uncomplicated
upper respiratory tract viral infection, may have non- specific symptoms such
as fever, cough, sore throat, nasal congestion, malaise, headache, muscle pain
or malaise. The elderly and immunosuppressed may present with atypical symptoms.
These patients do not have any signs of dehydration, sepsis or shortness of
breath
What do you mean by close
contact?
Close contacts are people
providing direct care to patients, working with infected health care workers,
visiting infected patients or staying in the same close environment, working
together in close proximity or sharing the same classroom environment with an
infected patient, traveling together with infected patient in any kind of
conveyance, living in the same household as an infected patient. The
epidemiological link may have occurred within a 14-day period before or after
the onset of illness in the case under consideration. But once the community spread occurs the
definition will no longer be correct.
What is the definition of
different cases?
· Primary
case: Who got infected first in Wuhan in China?
· Secondary
case: When the primary cases infected the
second person and tertiary when the secondary cases transmitted to another
person.
· Primary
case: The first case in the China Wuhan in
late December.
· Index
case: The first case in any country or the
province.
What is community spread?
Means when the infection
spreads without any contactable contact. Once that happens closing borders will
not contain the virus. All cases with flu like illness will be presumed to be
VOVID 19 AND ONLY patients with breathlessness will be tested.
What are mitigation
guidelines?
·
Universal
non-pharmaceutical interventions include personal practices, covering coughs
and washing hands, as well as community and environmental measures such as
surface cleaning.
·
Universal
community measures include social distancing, or limiting contact in
face-to-face settings, closing schools, telework or tele school for children,
and recommending “modify, postpone, or cancel mass gatherings.
·
In
healthcare system triaging patients, conducting patient visits via
telemedicine, and delaying elective surgeries.
·
Commercial
labs need to pitch in for testing.
·
Better to
be overprepared than underprepared.
·
The
testing criteria may change to testing only symptomatic cases and admitting
cases only with breathlessness. (probably Iran is doing this)
What are high risk countries?
China, Macau, Hong Kong, Taiwan,
South Korea, Singapore, Italy, Iran, and Japan.
Will Iran be
the next China?
· With 54 deaths in
Iran, looks like that Iran government is hiding the true extent of the
outbreak. If the virus kills about 2 percent of known victims, then the number
of cases should be 2100. Infact the death rates outside china are 1% and in
that case the number will be much higher in Iran.
· Cases in Iraq,
Afghanistan, Bahrain, Kuwait, Oman, Lebanon, United Arab Emirates and Canada
have been traced to Iran. Iran borders are crossed each year by millions of religious
pilgrims, migrant workers and others, is one of the biggest causes for
worry in what threatens to become a global epidemic.
Will afghan be the next source of carrying infection in India?
· Religious pilgrims,
migrant workers, businessmen, soldiers and clerics all flow constantly across
Iran’s frontiers, often crossing into countries with few border controls, weak
and ineffective governments and fragile health systems.
·
Many Afghanis are coming to India daily on health
visa and many of them come via Iran. It is likely many of them would carry the
virus to India.
What is the role
of 14 days quarantine?
Quarantines and
travel restrictions now in place in many counties, including the US, are also intended
to help break the chain of transmission. Public health authorities like the CDC
may recommend other approaches for people who may have been exposed to the
virus, including isolation at home and symptom monitoring for a period of time
(usually 14 days), depending on level of risk for
exposure.
Should I wear a
face mask to protect against coronavirus?
Currently, face
masks are not recommended for the general public. Some health facilities
require people to wear a mask under certain circumstances, such as if they have
travelled from the city of Wuhan, China or surrounding Hubei Province, or other
affected countries or have been in contact with people who did or with people
who have confirmed coronavirus.
If you have respiratory
symptoms like coughing or sneezing, experts recommend wearing a mask to protect
others. This may help contain droplets containing any type of virus, including
the flu, and protect close contacts (anyone within three to six feet of the
infected person).
Should someone who
is immunocompromised wear a mask?
Only if you are
attending a public function. However, if your healthcare provider advises you
to wear a mask when in public areas because you have a particularly vulnerable
immune system, follow that advice. But if masking has not been recommended to
you to protect against the flu and numerous other respiratory viruses, then it
doesn’t make sense to wear a mask to protect against COVID-19.
Should I accept
packages from China?
There is no reason
to suspect that packages from China harbour COVID-19. Remember, this is a
respiratory virus like the flu. We don’t stop receiving packages from China
during their flu season. We should follow that same logic for this novel
pathogen.
Can I catch the
coronavirus by eating food prepared by others?
COVID-19 and other
coronaviruses have been detected in the stool of certain patients, so we
currently cannot rule out the possibility of occasional transmission from
infected food handlers. The virus would likely be killed by cooking the food.
Should I travel on
a plane if I have fever?
Of course, if
anyone has a fever and respiratory symptoms, that person should not fly
if possible, but anyone who has a fever and respiratory symptoms and flies
anyway should wear a mask on an airplane.
What should people
do if they think they have coronavirus, or their child does? Go to an urgent
care clinic? Go to the ER?
Call your doctors
instead of rushing to emergency room.
Can people who
recover from the coronavirus still be carriers and therefore spread it?
There is no
current evidence?
Are we missing infections in India?
We do not know. In
Iran the country missed hundreds of cases till two persons died. Infect the
first case was the one who died.
Can people who
recover from a bout with the new coronavirus become infected again?
·
The Japanese government reported that a woman in
Osaka had tested positive for the coronavirus for a second time,
weeks after recovering from the infection and being discharged from a hospital.
Combined with reports from China of similar
cases, the case in Japan has raised some questions. Reinfections are common among people who have
recovered from coronaviruses that cause the
common cold.
·
Reinfection in a short time is unlikely. Even the mildest of infections should leave at least
short-term immunity against the virus in the recovering patient. More likely, the
“reinfected” patients still harboured low levels of the virus
when they were discharged from the hospital, and testing failed to pick it up.
·
Even if there were occasional cases of reinfection,
they do not seem to be occurring in numbers large enough to be a priority at
this point in the outbreak.
How long the
antibodies last?
Research with MERS has shown
that the strength of the immune response depends on the severity of the
infection, but that even in those with severe disease — which should produce
the strongest immune responses — the immunity seemed to wane within a year.
Why SARS never entered India except a few
cases and neighbouring countries?
Either cases were not detected or by the time
it reached India there was already a summer.
Are antibodies protective?
On Feb. 13, a Chinese senior
health official called on people who had recovered from the new coronavirus to donate blood plasma, because it might
contain valuable proteins that could be used to treat sick patients, according to The New York Times.
When should I suspect corona cases in India?
H1N1 negative flu like illness.
What is Environmental
disinfection?
· CDC states routine cleaning and
disinfection procedures are appropriate for COVID-19 virus. Products approved
by the Environmental Protection Agency for emerging viral pathogens should be
used.
· SARS and MERS,
have been found to persist on inanimate surfaces, including metal, glass or
plastic surfaces, for as long as nine days if that surface had not been
disinfected, according to a research published in The Journal of Hospital
Infection.
· Human
coronaviruses can be efficiently inactivated by surface disinfection procedures
with 62-71% ethanol, 0.5% hydrogen peroxide or 0.1% sodium hypochlorite"
or bleach within one minute.
· For SARS
coronavirus, the range of persistence on surfaces was less than five minutes to
nine days.
· According to the
CDC, the flu virus can live on some surfaces for as long as 48 hours and
potentially infect someone if the surface has not been cleaned and disinfected.
In
which conditions seasonal flu is more dangerous?
The flu is more dangerous to young children. Children
infected with the new coronavirus tend to have mild or no symptoms. It is also dangerous for pregnant women. Whether
the COVID 19 poses as serious a threat to pregnant women is not known.
How many people die of seasonal flu?
As of Feb. 22, in the current season there were at least 32 million cases of
flu in the United States, 310,000 hospitalizations and 18,000 flu deaths,
according to the C.D.C.
Can the warm atmosphere kill the
virus?
Coronavirus may retreat as weather warms, just as
influenza does. Because this is a new virus, there is no information about how
the weather might affect it.
Even if the virus were to diminish in the spring,
it might rebound later in the fall, as the weather cools. This is a pattern
often seen in severe flu seasons.
Can dengue coexist with COVID 19?
In Thailand a 35-year-old man who was diagnosed with dengue and
COVID-19 died. When combined with the
emerging infectious disease, it created complications leading to multi-organ
failure.
What is the preparedness in India?
The two designated hospitals in Delhi are RML
and Safdar Jang, both have an OPD of thousands of people. Ideally such OPDs should be held at places
where there no mix up with other types of patients.
Do we have a China like make-shift hospital
like facility in India?
Not so far.
How is the India government coordinating with
the IMA?
I am not aware of any such meeting.
How many Indian got Corona in the Diamond
Princes ship?
16
What is the role of army in containment of
any epidemic?
In March 2016 there was a biggest military mobilisation in Brazil’s history:
220,000 army, navy and air force personnel were called into action, as well as
315,000 public officials. The enemy was tiny Aedes aegypti mosquito
which is believed to be responsible for the spread of the Zika virus.
What
can happen if the disease spread in a city?
· Like Diamond
princess ship, quarantine will lead to 23% getting infected
· Like 1200 who
attended church 14% them have exhibited cough and
other symptoms
· China locked down
5 crore people with self-quarantine policy, 80,000 got infected (0.0016% of the
community) and 2760 deaths (0.0000552% of the population)
· 647,406
people close contact with infected patients (1:8 patients).
What
is the expected number of cases in Delhi in a Wuhan like situation?
· Total expected
positive in 1.67 crore population = 26720
· Likely contacts:
213760
· Expected serious
cases = 20% = 4008
· Likely deaths: 926
· At risk 60+
population In Delhi = 1164147
What
will be the preparedness needed then in Delhi?
4000
corona beds (15% of patients); self-quarantine of 17-20000 patients; no
admission for patients without breathlessness; paid teleconsultation of mild
cases; ICU beds with ventilatory care 3% (801 beds); Listing of hospitals with
ECHMO machines; PPE 5 per patient (20,000 per day); Surgical masks usage: 213760 per day; Hand sanitisers: at least 2
lac per day; Health care providers dedicated with corona handling training:
20,000; 250 persons trained in handling dead bodies of infected cases; 500-1000
dedicated mental health councillors to tackled corona anxiety; 20 corona
spokesmen to speak the same language; Prize cap of masks, other related
diagnostics and PEPs; censoring of myths and fake news on social media and earmarked and segregated areas for Corona
triage: suspect but not serious; suspect and serious; confirmed but not serious
and confirmed and serious?
What is the role of CMAAO in COVID 19?
CMAAO alerted
·
26 December 2019: viruses
like SARS detected and Chinese scientists alerted the world about it.
·
3 January 2020: Transition
from human to human raised concern
·
Despite this, on January
5, the Wuhan administration mentioned that the illness doesn’t seem to unfold
from people to people. China lastly formally confirmed on 20 January that the
corona was spreading from human to human.
·
7th January: WHO to
monitor China's mysterious pneumonia of unknown virus outbreak?
·
8th: CMAAO warns Asian
citizens travelling China over mystery pneumonia outbreak
·
10th: It’s a new strain of
corona virus in the china pneumonia
·
13th Jan: China Virus Outbreak Linked to Seafood Market
·
15th Jan: 1st Case China
Pneumonia Virus Found in Thailand outside China.
·
21st Jan: New China
coronavirus can spread between humans
·
22nd Jan: New China virus
now in US, Thailand, Japan, South Korea and Taiwan: Will India or other Asian
countries be spared
·
23rd Jan: Corona Virus:
will it be declared as International Public Health Emergency by WH
·
11th 24th Jan: Corona
virus 1st Death Outside Wuhan Epicentre Is Reported. W.H.O. DECISION: Corona
virus is spreading, but the organization says it is not a global emergency
·
25th Jan: 25 Jan Indian
Govt should pay for the treatment of India trapped in China with Corona Virus
Since than it has been covering daily.
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