The fourth round of antibody tests in New Delhi, the results of which were made public on Wednesday during a court hearing, presents some interesting questions. It found that 25.5% of the roughly 15,000 people tested possessed Covid-19 antibodies. The tests were carried out in the third week of October. …
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Science published a paper Wednesday based on one of the world’s largest contact tracing exercises. The study, covering 85,000 primary cases, was conducted in Andhra Pradesh and Tamil Nadu by a team of researchers led by Ramanan Laxminarayan of the Center for Disease Dynamics, Economics and Policy. The study tracked …
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One-tenth of all patients infected with the coronavirus disease (Covid-19) become “super-spreaders” and account for 60% of new infections, while 70% of infected patients do not transmit the disease to anyone else , shows a study on transmission patterns of Sars-CoV-2 published in the journal Science: it is the first …
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The prevalence of antibodies to the Sars-Cov-2 virus in Delhi fell by more than four percentage points in a month, officials told the Delhi high court citing the recent serosurvey, yielding an epidemiological finding that now skews estimates of how many people may have been exposed to Covid-19 in the …
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