Influenza A virus subtype H2N2 (A/H2N2) is a subtype of Influenza A virus. H2N2 has mutated into various strains including the "Asian flu" strain (now extinct in the wild), H3N2, and various …

2025年2月14日 · The 1957 flu pandemic was caused by influenza H2N2 virus, to which few people had previous exposure. A vaccine was rapidly developed against H2N2, though later …

The strain of virus that caused the Asian flu pandemic, influenza A virus subtype H2N2, was a recombination of avian influenza (probably from geese) and human influenza viruses. [9] [25] …

2019年1月2日 · In February 1957, a new influenza A (H2N2) virus emerged in East Asia, triggering a pandemic (“Asian Flu”). This H2N2 virus was comprised of three different genes …

For five days and nights, his team tested it against blood from thousands of Americans. They found that this strain, H2N2, was unlike any flu that humans were known to have encountered.

2016年10月4日 · Strains of influenza are characterized by two proteins that are on the outer surface of the virus: hemagglutinin and neuraminidase. This is where the "H" and "N" in the …

2020年6月13日 · Worldwide, the pandemic, sparked by a new H2N2 influenza subtype, would result in more than 1 million deaths.

The Asian H2N2 influenza virus was characterized by early summer, 1957, but significant mortality in the United States did not occur until October. In 1968, the pandemic wave of …

2009年9月15日 · Influenza A viruses of 3 subtypes—H1N1, H2N2, and H3N2—have been endemic in humans. Influenza A H1N1 caused the 1918 pandemic and circulated in humans …

… known as influenza A subtype H2N2. Research has indicated that this virus was a reassortant (mixed species) strain, originating from strains of avian influenza and human influenza viruses. …