health: Influenza A H1N1 flu is what causes it?
December 23, 2009 — JessePeople are infected with swine flu, after the early clinical symptoms similar to flu, with fever, cough, fatigue, loss of appetite, etc. can also be symptoms such as diarrhea or vomiting. … In October 1999, Hong Kong, a 10-month-old girl infected with the swine influenza virus H3N2 , now fully recovered. Over the years, all over the world people are infected with swine influenza viruses of different virus strains reported, but no large-scale epidemic. …