These mutations are why last year’s flu vaccine may no longer be effective ... protein present in influenza A viruses, from the 1918 Spanish flu to the latest 2024 H5N1 strains.
It was called the Spanish influenza. It was just completely a bad rap, by the way, on Spain — it’s called the Spanish influenza because Spain, not being a belligerent in the war — Spain got ...
The outbreak of this influenza virus, also known as Spanish flu, spread with astonishing speed around the world, overwhelming India, and reaching Australia and the remote Pacific islands.
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