New Delhi, March 27 -- Warm and humid weather may combat the spread of the coronavirus disease (Covid-19), a new study suggests, arguing that Asian countries experiencing monsoon may see a slowdown in the transmission of the deadly infection that has claimed 13 lives in India and almost 22,000 around the world.

Analysing Covid-19 infection data from across the world until March 22, two researchers from the Massachusetts Institute of Technology (MIT) show that the cases have a correlation with two parameters: temperature and absolute humidity, which is a measure of water vapour per square metre of area (more humid countries will have higher absolute humidity).

The study finds that 90% of the cases were reported from countries with a range ...