Influenza A Virus Subtype H2N2
H2N2 is a subtype of the type influenzavirus A. H2N2 has mutated into various strains including the Asian flu strain (now extinct in the wild), H3N2, and various strains found in birds. It is also suspected of causing a human pandemic in 1889. The geographic spreading of the 1889 Russian flu have been studied and published.
Read more about Influenza A Virus Subtype H2N2: Russian Flu, Asian Flu, Test Kits
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“If I knew for a certainty that a man was coming to my house with the conscious design of doing me good, I should run for my life ... for fear that I should get some of his good done to me,—some of its virus mingled with my blood.”
—Henry David Thoreau (1817–1862)