68% of Indians have Covid-19 antibodies, 1/3rd vulnerable

NEW DELHI: At least one-third of Indians are still vulnerable to Covid-19 infection, health officials have said, while sharing the findings of the fourth national sero survey, which shows 67.6% of the general population have antibodies against the SARS-CoV2 virus.
While the high sero-positivity gives rise to hope that a majority of people have developed antibodies, the officials cautioned that the findings should not be extrapolated to draw conclusions at district and state levels as many areas in the country still have a high positivity rate. Moreoever, the distribution of persons with antibodies is not likely to be even.

“The findings clearly show that there is a ray of hope but there is no room for complacency. We have to maintain Covid-appropriate behavior and community engagement,” Indian Council for Medical Research (ICMR) director general Balram Bhargava said on Tuesday.Interestingly, the highest sero positivity of 77.6% was found in the 45-60 age group and not the younger 18-44 profile that is seen to be more mobile. Children showed the lowest exposure to Covid as compared to other age groups. However, more than half the children in the 6-17 bracket had antibodies. The sero-positivity was 57.2% in the 6-9 years age group, whereas 61.6% in the 10-17 years age groups showed presence of antibodies.