The Centers for Disease Control and Prevention has ended its emergency response to the H5N1 bird flu and said Monday it will ...

As flu season ramps up in the U.S., influenza is not as simple as it first appears, with several different strains in play. ... More SciePro / dragana991/iStock / Getty Images Plus / Canva ...

Flu pictures. Image 1 of 5 ... Influenza virus proteins in the act of self-replication, captured with a microscope. The blue protein encloses the virus's RNA (green), its genetic material.

The US Centers for Disease Control and Prevention says it has ended its emergency response to H5N1 bird flu, citing a drop in ...

Wildfire smoke increases indoors activity, raising the risk for airborne disease transmission such as influenza and COVID-19, ...

New research uses bird droppings to track avian flu in remote regions, revealing hidden hotspots and potential for early ...

A recombinant flu vaccine (Flublok) contains no eggs and was recently approved for use in individuals aged 9 years or older ...

Two types of influenza viruses are responsible for seasonal flu outbreaks: Influenza A and B. Influenza A accounts for around 75 percent of all cases and tends to cause more severe illness in adults.

Earlier run-ins with flu can pay off. During the last influenza pandemic — the 2009 swine flu outbreak — people under 65 accounted for most of the hospitalizations and deaths.. This was a ...

Both swine and avian influenza are strains of influenza A. Just as swine flu strains tend to infect pigs, avian flu strains ...

1918-19 "Spanish flu" A -- Caused the highest known influenza-related mortality: almost 700,000 deaths occurred in the U.S., and between 50 million to 100 million worldwide 1957-58 "Asian flu" A ...