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WHAT ’ S all the Buzz about? Vector-borne Diseases and Climate Change

WHAT ’ S all the Buzz about? Vector-borne Diseases and Climate Change. Linh Pham, Ph.D., NIEHS. Common Vectors That Transmit Disease. Mosquito. Tick. Mouse. Deer. Examples of Vector-Borne Diseases. West Nile Virus Malaria Dengue Lyme Disease Hanta Virus Yellow Fever

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WHAT ’ S all the Buzz about? Vector-borne Diseases and Climate Change

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  1. WHAT’S all the Buzz about? Vector-borne Diseases and Climate Change Linh Pham, Ph.D., NIEHS

  2. Common Vectors That Transmit Disease Mosquito Tick Mouse Deer

  3. Examples of Vector-Borne Diseases • West Nile Virus • Malaria • Dengue • Lyme Disease • Hanta Virus • Yellow Fever • Rocky Mountain Spotted Fever • Bubonic Plague Characteristic bull rash caused by Lyme disease

  4. West Nile Virus Transmission Cycle Incidental Exposure Mosquito Vector West Nile Virus West Nile Virus Bird Reservoir Host Incidental Exposure

  5. How Weather Affects Vector-Borne Diseases • Temperature • Humidity • Surface water • Tropical and subtropical regions • Predator patterns

  6. NASA Map image depicting the world’s rise in temperature

  7. Average Air Temperature AnomalyDecember 2009 NASA

  8. How Weather Affects Vector-Borne Diseases • Temperature • Humidity • Surface water • Tropical and subtropical regions • Predator patterns • Climate Change • Larger geographic area where disease is common • Intensity and duration of outbreaks • Altered seasonal distributions

  9. How Climate Change Affects Vector-Borne Diseases • Mosquitoes develop more rapidly • Mosquitoes bite more frequently • Viral load in mosquitoes is higher • Because more people are infected, more mosquitoes become carriers that transmit disease

  10. Acknowledgements • Lesson plan was adapted from Attack of the Killer Mosquitoes TAMU peer lesson plan submitted by Nick Anthis, 2004 • US Government Stock Images • Public Health Image Library • NASA (www.nasa.gov) • www.whitehouse.gov

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