India will add four million more cases by May 1, says Giridhara Babu

A small proportion of the population might have reinfections due to waning antibodies. With newer areas seeing the surge in cases, we cannot rule out older variants spreading to these areas. There may be a dual problem facing the country. The old and newer variants might be in circulation in the uninfected regions in an … Continue reading India will add four million more cases by May 1, says Giridhara Babu

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Cannot emphatically say India has passed the COVID-19 peak

Dr. Gautam Menon and Dr. Giridhara R. Babu discuss whether India has gone past the peak. Dr. Menon says in major cities in India and in some districts adjacent to those cities that already have sufficient numbers of people infected with novel coronavirus, the number of new infections is going down. But one can't say … Continue reading Cannot emphatically say India has passed the COVID-19 peak

Finally, Tamil Nadu to resume contact tracing with earnestness

Aggressive testing since mid-June in hotspot areas in Chennai and the 12-day lockdown that went into effect from June 19 helped sharply reduce daily fresh cases from its peak of about 2,000 to 1,100-1,200. But Tamil Nadu has not been able to reduce it any further. One of the main reasons: Absent boots on the … Continue reading Finally, Tamil Nadu to resume contact tracing with earnestness

Coronavirus spread shifts from large to smaller Indian cities

In the last one month, cases in seven large Indian cities have reduced from 59% to 50% and deaths from 46% to 35%. Drop in cases seen in a few metros cities accompanied by rise in cases in smaller cities shows the new foci of local expanding circulation. Even as the number of novel coronavirus … Continue reading Coronavirus spread shifts from large to smaller Indian cities

COVID-19: What explains the low case fatality rate in India

The case fatality rate in India, which has been falling steadily, has for the first time dipped below the 2.5% mark on July 19; it was 3.2% in the second week of May. There are many factors that could alter the case fatality rate. Increased testing in recent weeks could be just one of them. … Continue reading COVID-19: What explains the low case fatality rate in India

A report card of States as coronavirus cases cross one million in India

With surveillance not being commendable, the 10.3% test positivity rate nationally in the last few days is a clear indication that a very large pool of infected people in the community remains undiagnosed. The number of tests done daily has now crossed three lakhs but the high-test positivity rate underscores the need to increase the … Continue reading A report card of States as coronavirus cases cross one million in India

Scientists now know why Chennai received unprecedented heavy rainfall in 2015

Both extreme El Nino conditions and the warming trend in the Bay of Bengal contributed equally to the Chennai deluge. The extreme El Nino conditions in 2015 and the warming trend in the Bay of Bengal contributed equally to the unprecedented heavy rainfall witnessed in Chennai for three days from November 30 to December 2, 2015, … Continue reading Scientists now know why Chennai received unprecedented heavy rainfall in 2015