COVID 19 in pandemic alert period phase 5-6
Dr KK Aggarwal
President CMAAO, HCFI and Past national President IMA
· So far COVID 19 is a "public-health emergency of international concern"
· The WHO defines a pandemic as "the worldwide spread of a new disease."
· It's also defined by a lack of available treatment, a lack of human immunity, and an ability to spread from person to person.
· A pandemic disease spreads across "several countries or continents, usually affecting a large number of people," according to the US Centers for Disease Control and Prevention (CDC).
· Virus outbreaks can be characterized as a pandemic if the disease is "markedly different from recently circulating strains" and if "humans have little or no immunity" to it, according to the UK's Health and Safety Executive.
· A disease becomes a pandemic when it can infect many humans over a large area, be transferred from person to person, and cause clinical illness.
· The term epidemic, by contrast, refers to a more localized or regional outbreak, rather than a global one. The CDC says an epidemic is an "increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area." Similarly, the WHO defines an epidemic as the "occurrence in a community or region of cases of an illness, specific health-related behaviour, or other health-related events clearly in excess of normal expectancy."
The COVID 19 may have originated at the Huanan Seafood Market in Wuhan, Hubei, China. There have been over 1,775 deaths. This virus is transmissible from human to human. The Chinese government has placed Wuhan and the surrounding cities on lockdown. The disease has already spread to 29 countries. However, the World Health Organization (WHO) has not yet declared this a pandemic.
The World Health Organization has a six-stage classification that describes the process by which a novel influenza virus moves from the first few infections in humans through to a pandemic.
This starts with the virus mostly infecting animals, with a few cases where animals infect people, then moves through the stage where the virus begins to spread directly between people and ends with a pandemic when infections from the new virus have spread worldwide.
A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious. For instance, cancer is responsible for many deaths but is not considered a pandemic because the disease is not infectious or contagious.
WHO classification of Influenza Pandemkia