Every other day, the news arrives with depressing regularity: viral fevers are tormenting a city, or a town, or a cluster of villages in India. People are sick everywhere.

The capital, Delhi, is fighting an outbreak of chikungunya. Next door, Haryana is battling malaria. Down south, the info-tech hub of Bangalore is grappling with both. Dengue has returned with a vengeance in Kolkata and its neighbouring areas. Continue Reading.