https://www.cdc.gov/flu/pandemic-resources/2009-h1n1-pandemic.html
However, (H1N1)pdm09 virus continues to circulate as a seasonal flu virus, and cause illness, hospitalization, and deaths worldwide every year.
https://www.cdc.gov/flu/pandemic-resources/2009-h1n1-pandemic.html
However, (H1N1)pdm09 virus continues to circulate as a seasonal flu virus, and cause illness, hospitalization, and deaths worldwide every year.