Russia is the most recent 1977-1978 flu epidemic of influenza caused by a strain of flu in A/USSR/90/77 (H1N1). The majority of infected children and young adults under 23 years due to stress is pervasive in the 1947 -- 57 The reason most adults are immune. Some called it a pandemic of influenza, but because Specifically related to youth are not considered a true pandemic. Virus was included in the 1978-1979 vaccine against influenza.
Wednesday, July 22, 2009
2009 A(H1N1) pandemic
In 2009, pandemic influenza, a virus isolated from patients in the U.S. enterprise is genetic. Quaternary influenza viruses - influenza, Mexico, North America, North American bird flu, human flu and swine flu viruses are in Asia and Europe - "mongrelised unusual mix of genetic sequences." This new strain appears. Due to reassortment of human influenza and swine influenza virus in four different strains of subtype H1N1.
Preliminary genetic characteristics found hemagglutinin gene similar to the flu swine fever virus 
in the United States in 1999 neuraminidase (NA) and matrix protein (M) similar to the current generation of genetic swine influenza isolates. six swine influenza genes of Americans own blends. Avian Influenza, swine flu and human flu viruses. Although the virus is never found genetic flow in pigs or humans national staff administrator to verify that the virus circulating in pigs in the United States.
in the United States in 1999 neuraminidase (NA) and matrix protein (M) similar to the current generation of genetic swine influenza isolates. six swine influenza genes of Americans own blends. Avian Influenza, swine flu and human flu viruses. Although the virus is never found genetic flow in pigs or humans national staff administrator to verify that the virus circulating in pigs in the United States.11 June 2009 announcing the pandemic of H1N1, has been transferred to phase 6 alert level for the first time in the world pandemic of flu in Hong Kong since 1968.
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