As millions gather for Kumbh Mela, doctors are watching

When a cholera outbreak gripped a London neighbourhood in 1854, physician John Snow carefully mapped its deaths. The thin bars he traced under each address clustered around a water pump on Broad Street, which turned out to be the source of the bacteria. Snow’s studies of disease patterns won him recognition as the father of modern epidemiology—and crushed the prevailing theory that cholera was spread by bad air.

Faced with … Read the rest

Climate change may alter malaria patterns

mosquitoMalaria has long been endemic in Kenya’s humid lowlands and its tropical coast. But in recent decades there has been a spike in the number of malaria epidemics in the East African Highlands—an area where the people living there have little experience with the disease.

The East African Highlands are high above sea level. Traditionally, the cool breezy climate has been inhospitable to mosquitoes. But in the late 1990s average … Read the rest