Influenza in the tropics shows variable seasonality

EarthzineHealth

An electron microscope image of Vibrio cholera that has been negatively stained. Vibrio cholera is the bacteria responsible for the gastrointestinal disease cholera.

Whilst countries in the tropics and subtropics exhibit diverse patterns of seasonal flu activity, they can be grouped into eight geographical zones to optimise vaccine formulation and delivery timing, according to a new study.