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Lecture 9

Lecture 9

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University of Toronto Scarborough
Mark Hunter

GGRB28 Lecture 9: Bird FluSwine Flu - Flu has long been a killer, the 1918 outbreak killed approx. 40million, spreading in 1 year - The natural home of flu is in waterfowl and swine (e.g. ducks, geese, swans, pigs) - Bird Flu crisis began in 1997, when new bird flu strain (H5N1) was discovered in HK - H5N1 Bird Flu Strain deadly if it jump to human to human SARS. A disease of globalization? - Severe Acute Respiratory Syndrome is a strong virus - Cases in 2002-3. Nearly 800 deaths. No new cases since then. - Spread to 2 dozen countries, including by air (globalization) - Symptoms: high fever, headache, aches - A disease that causes worry is one: that once contracted a lot of people that got it died, or spreads very quickly SARS was spread thru globalization, caused many deaths - SARS quarantine is more effective than flu quarantine flu you spread before you even have symptoms, SARS you infect people after you get symptoms SARS from the Metropole Hotel - Super spreader Swine Flu - Began in Mexico in early 2009 (area with many factory farms) concentration of animals - H1N1 subtype humans have little immunity spread human to human - Not a strong virus - Declared a P
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