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

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Presentation transcript:

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

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS Common Vectors That Transmit Disease MosquitoTick MouseDeer

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS 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

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS West Nile Virus Transmission Cycle Mosquito Vector Bird Reservoir Host West Nile Virus Incidental Exposure

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS How Weather Affects Vector-Borne Diseases Temperature Humidity Surface water Tropical and subtropical regions Predator patterns

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS NASA Map image depicting the world’s rise in temperature

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS NASA Average Air Temperature Anomaly December 2009

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS 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

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS 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

National Institute of Environmental Health Sciences NIEHS A PEER-REVIEWED OPEN ACCESS JOURNAL PUBLISHED BY THE NIEHS 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 ( –