Russian Influenza-A H1N1, (A/USSR/90/77 strain)

Russian Influenza-A H1N1, (A/USSR/90/77 strain)

Russian Influenza-A H1N1, (A/USSR/90/77 strain)

This transmission electron micrograph (TEM) depicted Russian influenza-A H1N1, (A/USSR/90/77 strain), virions, which had been magnified 189,000x.