The first giant virus to be identified, called Mimivirus (short for microbe mimicking virus), was discovered in 2003 inside an amoeba found in a cooling tower in Bradford, England.

Influenza hemagglutinin subunit vaccines are more effective and offer better cross protection against various influenza virus ...

Influenza hemagglutinin subunit vaccines are more effective and offer better cross protection against various influenza virus ...

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 ...