Causes: Tularemia is an extremely infectious disease caused by Francisella tularensis bacteria. The microbe is found throughout the Northern Hemisphere and occasionally in the tropics and Southern ...

Dave Wessner is a virologist who covers infectious diseases. The mystery disease ... illness could be caused by a viral infection on a background of malaria and malnutrition.

(CNN) — Welcome to winter virus season. Cases of acute respiratory illness, Covid-19 and seasonal flu are increasing in most parts of the United States, according to the US Centers for Disease ...