A study of 660,000 Indians finds that a few individuals spread most new infections and that children transmit the coronavirus just as well as adults.
India’s coronavirus tally has reached 6 million cases, double the total recorded barely a month ago and second overall only to the U.S.the study authors said their work showed one strength of the country’s response: the ability to mobilize large numbers of health workers and civil servants to conduct contact tracing, identify high-risk individuals and closely track their cases.
In Tamil Nadu, which includes the coastal metropolis of Chennai , thousands of public and private healthcare workers were trained as contact tracers and health surveillance officers. The state had experience identifying at-risk populations from its battle against AIDS, which struck Tamil Nadu harder than almost anywhere else in the country.Sign up for the latest news, best stories and what they mean for you, plus answers to your questions.
Although contact tracing is crucial to identifying, isolating and testing those vulnerable to infection — and helped countries such as
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