medical Definition of H1N1
- … by the third week of April it was established that the illness resulted from a triple recombination of human, avian, and swine influenza viruses; the virus has been found to be H1N1.
- —Lindsey R. Baden et al., The New England Journal of Medicine, 18 June 2009
- Last year, older people had some immunity to the H1N1 virus because it resembled strains that circulated decades ago.
- —Blythe Bernhard, The St. Louis Post-Dispatch, 16 Jan. 2011
- If you or your child came down with influenza during the H1N1, or swine flu, outbreak in 2009, it may not have happened the way you thought it did.
- —Nicholas Bakalar, The New York Times, 3 Feb. 2011
- Thankfully, the H1N1 flu didn't turn into the doomsday bug that some scientists feared.
- —The Chicago Tribune, 17 Apr. 2010