To maintain vaccine efficacy, WHO regularly updates influenza vaccine strains based on global epidemiological, virological, ...

Two surface proteins, HA and NA, determine the antigenic properties of influenza virus strains. In 1958, a new strain of influenza A with different HA and NA was identified and antigenic shift was ...

This season's influenza vaccine may have been a poor match to a strain of the flu virus that caused many infections this winter, early data released by the Centers for Disease Control and ...

“As oseltamivir is the most widely used therapeutic and prophylactic against IAV [influenza A virus], the continued circulation of viruses harboring NA-H275Y may necessitate a re-evaluation of ...

Periodically, the yearly flu transforms into a particularly virulent strain, like the Spanish flu that killed millions of people in 1918. How do these pandemic strains arise? Aa Aa Aa Although ...

Catani and colleagues provide data on antigenic properties of neuraminidase proteins of pandemic H1N1 and show that antigenic diversity of the neuraminidase from 2009 to 2020 largely falls into two ...

Two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA), and the M2 ion-channel protein are embedded in the viral envelope, which is derived from the host's plasma membrane.

Minnesota health officials are warning health care facilities after a Twin Cities child with the flu developed a case of rare brain inflammation. The Minnesota Department of Health said the child ...

Courtesy of Cynthia S. Goldsmith and Thomas Rowe / Centers for Disease Control and Prevention Seasonal flu is causing a second peak of illness and hospitalizations in Oregon this month ...