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Lecture 9

Lecture 9

3 Pages
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Department
Geography
Course Code
GGRB28H3
Professor
Mark Hunter

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GGRB28 Lecture 9:
Bird Flu/Swine 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 Pandemic by the WHO
- Seasonal Flu accounts for 2-8000 annual deaths. Will this be worse?
- Government ordered 50.5 million doses of vaccine
- Some antiviral drugs in stock
- Vaccine sequencing
Flu 1918
SARS
H5N1 Bird Flu
H1N1
Type of Virus
Infectious,
asymptomatic
Symptoms before
infectious
Infectious,
asymptomatic
Infectious,
asymptomatic
Ability to Kill
Humans
Relatively High
Relatively High
Relatively High
Low
Movement
Train, boat
Air, other
Air, train, walking
etc.
Air, train, walking
etc.
Main people
affected
Poor, but
widespread
mobile
All, but especially
the poor
All, but especially
the poor
The Resurgence of TB in marginalized Spaces
TB and social change
- TB is contracted through airborne drops
- Not particularly infectious, requires long and frequent exposure
- TB can progress quickly with lower resistance
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Description
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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