Swine Flu

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Swine Flu

  1. 1. The strain responsiblefor the 2009 swine flu outbreak is believedto have undergone such a mutation This virus is named Swine flu because one of its surface proteins is similar to viruses that usually infects pigs, but this strain is spreadingin people and it is unknown if it infectspigs.
  2. 2. • chills, • fever, • sore throat, • muscle pains, • severe headache, • coughing, • weaknessand • general discomfort.
  3. 3. Epidemics (avail. data) Year Infected Deaths Mortality % Death rate/1,000 Spanish flu (worldwide) 1918-19 1 billion 30 million 3% 30 Asian flu (U.S.) 1957 45 million 70,000 .16% 1.6 Hong Kong flu (U.S.) 1968-69 50 million 33,000 .07% .7 Avian flu (worldwide) 1990-today 421 257 61% 610 SARS (worldwide) 2002-03 8,096 774 9.6% 96 General flu (U.S.) yearly average 50 million 36,000 .08% .8 Swine flu (worldwide) "confirmed" as of 4/29/2009 273 153 2.6% 26

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