Volume 26, Number 9—September 2020
Detection of H1 Swine Influenza A Virus Antibodies in Human Serum Samples by Age Group1
|Virus strain||Abbreviation||Subtype||Colloquial name H1||H1 clade||H1 GenBank Accession no.|
|A/New Caledonia/20/99||NC99||H1N1||Human seasonal||1B.2-like||DQ508857|
|A/swine/Alabama/A01104091/2016||swAL16||H1N2||North American human-like δ1a||1B.2.2.1||KX247675|
|A/swine/Illinois/A01047020/2010||swIL10||H1N2||North American human-like δ1b||1B.2.2.2||JQ756323|
||North American human-like δ1b
|A/swine/Ohio/511445/2007||swOH07||H1N1||North American classical swine γ||1A.3.3.3||EU604689|
*Viruses are ordered chronologically according to the year of circulation of the selected human test viruses TW86, NC99, BR07, and CA09; horizontal rules within table represent grouping of epidemiologically related human and swine influenza A viruses, with the oldest (ancestor) virus mentioned first.
1Preliminary results from this study were presented at the Fourth International Symposium on Neglected Influenza Viruses, April 18–20, 2018, Brighton, United Kingdom; at the BELVIR conference, December 20, 2018, Brussels, Belgium; and at the 1918 Pandemic Conference, February 7–8, 2019, Ypres, Belgium.