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Second national sero-survey
October 3 , 2020
1435 days
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- The second national sero-survey have been released by the Indian Council of Medical Research (ICMR).
- They are conducted by drawing blood samples and checking for a specific class of antibodies called IgG that appear within two weeks of an infection.
- Because, it is yet unclear how long antibodies detectably persist in the body, their presence only indicates past exposure to — and not presence of — the virus.
Highlights
- Around 7% of India’s adult population may have been exposed to the novel coronavirus till the last fortnight of August.
- During the first survey, it emerged that there were 82-130 infections for every confirmed COVID-19 positive case that now dropped to 26-32 infections.
- The country wide prevalence of the virus was similar to that seen in the United States, which was around 9.3%.
- Brazil and Spain had a prevalence of 2.8% and 4.6%.
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