Researchers in Ohio and New Mexico are reporting an advance in the quest for a fast, sensitive test to detect flu viruses — one that requires no refrigeration and can be used in remote areas of the world where new flu viruses often emerge.

Seasonal influenza strains constantly evolve in overlapping epidemics in Asia and sweep the rest of the world each year, an international research team has found.

Scientists discover the travel patterns of seasonal flu - findings may lead to improved flu vaccines.

This winter has been one of the worst flu seasons in recent memory, and researchers are trying to explain why. They believe that the flu is so potent in the winter due to cold temperatures.