swine+flu+ih

In 2009, the flu pandemic was a global outbreak of a new strain of H1N1 virus or known as "swine flu". It was described in April 2009 the virus appeared to be a new strain of H1N1 which resulted when a previous triple reassortment of bird pig, and human viruses combined with an Eurasin pig flu virus. H1N1 does not infect adults older than 60 yrs so this was very unusual. The symptoms were increased breathing difficulty and typically occurs 3-6 days after inital onset of flu symptoms. The out break began in the state of veracruz Mexicio with an evidence that there had been an outgoing epedemic.