Spanish flu pandemic was caused by a particularly virulent strain of influenza virus. It infected 500 million people, caused ...

The first inactivated influenza vaccine was monovalent (influenza ... viruses isolated during the 1900s); The subtype [16 possible hemagglutinin and 9 possible neuraminidase subtypes].

Our current influenza vaccines are strain-specific and often ... itself to receptors on the cell surface using a protein called hemagglutinin (HA). To a lesser extent, the virus can also use ...

A team of virologists, infectious disease specialists and pathobiologists affiliated with several institutions in China and ...

The following is a summary of “Expert consensus on the benefits of neuraminidase in conventional influenza vaccines: a Delphi study,” published in the January 2025 issue of Infectious Disease by ...

Symptoms usually come on suddenly, according to the CDC, and can include fevers above 100.4 degrees F, dry cough, sore throat ...

Large-scale poultry vaccinations may be driving bird flu evolution, according to a concerning new international study.

Learn more about how a vaccine could help prevent the spread of the avian flu virus but may also cause the virus to evolve ...

The year of isolation (four-digit year for viruses isolated in 2000 or later; two-digit year for viruses isolated during the 1900s); The subtype [16 possible hemagglutinin and 9 possible ...