Article
H1N1 Influenza A Disease — Information for Health Professionals
8 May 2009
Abstract excerpt
In the first 2 weeks in April, cases of infection with an untypable influenza A virus began to be identified in Mexico and southern California.1 Although the exact sequence of events is uncertain, 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. This virologic analysis allowed for...
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