Both HBsAg and anti-HBc (hepatitis B core antibody) are used for blood donor screening. Anti-HBc is done to detect donors who are in the window phase during recovery from acute hepatitis B or who have low level chronic HBV infection. 0.4 % people indulge in high-risk behavior within the three months before blood donation.
(About the author: Dr K K Aggarwal is Padmashri and Dr B C Roy National Awardee, President Heart Care Foundation of India, Dean Board of Medical Education Moolchand Medcity, Sr Physician & Cardiologist, Visiting professor Clinical Research DIPSAR, Past President Delhi Medical Association, Past Academic and Research Wing Head IMA, Chairman Ethics Committee Delhi Medical Council. )
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