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April 1st, 2013 posted by Paul Rega, MD, FACEP April 1, 2013 @ 5:46 am

H7N9: Did this unusual flu strain kill 2 and leave another in critical condition?

2 dead in China from unusual bird flu strain


By Jethro Mullen, CNN
April 1, 2013 — Updated 1031 GMT (1831 HKT)
“……..The victims all had initial symptoms of fever and coughing that then developed into severe pneumonia and difficulty in breathing, Xinhua reported.A team of experts assigned by the health commission established that the three cases were human infections of H7N9 avian influenza, which has not been found in humans previously………”
From CDC:   

Influenza A H7

Nine potential subtypes of H7 viruses are known (H7N1, H7N2, H7N3, H7N4, H7N5, H7N6, H7N7, H7N8, and H7N9). Most H7 viruses identified worldwide in wild birds and poultry are LPAI viruses. H7 virus infection in humans is uncommon, but has been documented in persons who have direct contact with infected birds, especially during outbreaks of H7 virus among poultry. Illness in humans may include conjunctivitis and/or upper respiratory tract symptoms. In humans, LPAI (H7N2, H7N3, H7N7) virus infections have caused mild to moderate illness, and HPAI (H7N3, H7N7) virus infections have caused mild to severe and fatal illness.

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