SWINE FLU - CURRENT EPIDEMIC
Last Updated : 12/8/2009
Karishma Kulkarni*, Nikhil Thatte*, Rucha Shelgikar*, Ira Shah**
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Influenza A H1N1
Influenza A (H1N1) (referred to as "

swine flu

" early on) is a new influenza virus causing illness in people. This new virus was first detected in people in the United States in April 2009 with the 1st case in India being detected on May 16th, 2009. This virus is spreading from person-to-person worldwide, probably in much the same way that regular seasonal influenza viruses spread. On June 11, 2009, the World Health Organization (WHO) signaled that a pandemic of this novel H1N1 flu was underway, thus classifying it as Phase 6. This virus was originally referred to as “swine flu” because laboratory testing showed that many of the genes in this new virus were very similar to influenza viruses that normally occur in pigs (swine) in North America. But further study has shown that this new virus is very different from what normally circulates in North American pigs. It has two genes from flu viruses that normally circulate in pigs in Europe and Asia and bird (avian) genes and human genes. Scientists call this a "quadruple reassortant" virus.

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Contributor Information and Disclosures

Karishma Kulkarni*, Nikhil Thatte*, Rucha Shelgikar*, Ira Shah**
*MBBS, KEM Hospital, Mumbai, **Consultant Pediatrician, B.J.Wadia Hospital for Children, Mumbai, India


First Created : 1/8/2009

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