US dodged a bird flu pandemic in 1957 thanks to eggs and dumb luck – with a new strain spreading fast, will Americans get lucky again?
With the devastating 1918 pandemic in mind, US health officials saw an outbreak in Asia and swung into action. What happened ...
Medscape3d
The Evolving History of Influenza Viruses and Influenza Vaccines
In 1958, a new strain of influenza A with different HA and NA was identified and antigenic shift was discovered; the need for a trivalent vaccine was recognized. Technical advances have made it ...
Nature5y
Genetics of the Influenza Virus
These strains occur because of the phenomenon known as antigenic shift, in which humans are infected with avian influenza viruses or viruses that contain a combination of genes from human and ...
PBS6y
Flu Trackers
When two or more existing strains combine to form a new strain that is called antigenic shift. Such a significant mutation occurs, for instance, when a flu virus from a bird and a flu virus from ...
Nature10y
Flu: The Story of the Great Influenza Pandemic of 1918 and the Search for the Virus that Caused It
or antigenic shift (which for flu is usually the acquisition of a whole new segment of RNA). Any scientist or physician interested in the influenza virus itself, and all its fascinating ...