With 46 U.S. cases and alarming signs of the virus crossing species, experts warn of unpredictable risks if human-to-human ...

State health officials are investigating possible sources of the H5 avian influenza virus detected for the first time in a wastewater sample from Oahu, but reassure residents that public risk remains ...

The Madera County Department of Public Health working with state and federal health agencies has identified two human cases of H5N1 bird flu.One of the cases h ...

Wastewater in several Californian cities, including San Francisco and Los Angeles, recently tested positive for bird flu. But ...

There have been dozens of confirmed human cases of bird flu in the U.S. this year. Experts discuss the symptoms, risks and ...

A teenager in Canada is critically ill with the country's first human case of H5N1 bird flu. Health officials aren't sure how ...

Initial testing had indicated the teenager's infection was from bird flu and was confirmed in further testing, the Public ...

A teenager in British Columbia was hospitalized in critical condition with the disease, and officials were working to find ...

Another cause for concern: flu season is underway in the U.S., and as seasonal influenza virus goes around, “humans, ...

Viruses are the fastest-evolving biological entity on Earth. This fact explains why we need flu shots every year: Seasonal ...

Cases of H5N1 bird flu in U.S. dairy and poultry workers have largely been mild. However, a new case in a British Columbia ...