A look at how climate change is affecting infectious diseases.
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Transcript of A look at how climate change is affecting infectious diseases.
![Page 1: A look at how climate change is affecting infectious diseases.](https://reader036.fdocuments.in/reader036/viewer/2022062401/5a4d1b0a7f8b9ab05998a35b/html5/thumbnails/1.jpg)
Infectious DiseaseA look at how climate change is
affecting infectious diseases.
A Windows to the Universe presentation to accompany the Infectious Diseases activity
www.windows2universe.org
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Changing Planet: Infectious Diseases
NBC Learn Video – Infectious Diseases
www.windows2universe.org
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Vector-borne diseases
www.windows2universe.org
Vectors are animals that spread human diseases
Disease Vector Population at riskNumber of people infected
Present distribution
Likelihood of altered
distribution
Malaria Mosquito 2.4 billion 300-500 million
Tropics and subtropics
High
Schistosomiasis Water snail
600 million 200 million
Tropics and subtropics
Medium
African sleeping sickness
Tsetse fly 55 million 300,000 Tropical Africa
Medium
Dengue Mosquito 1.8 billion 30 million
Tropics Medium
Yellow Fever Mosquito 450 million >5,000 Tropics Low
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Malaria
• Malaria affects millions of people worldwide every year.
www.windows2universe.org
• Malaria is spread by mosquitoes, and is a problem in warm, wet climates where the mosquitoes flourish
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Cholera
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• Cholera is a disease caused by a bacterium that spreads through contaminated drinking water
• When poor living conditions or disaster force people to drink contaminated water, cholera can quickly become epidemic
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Dengue • Dengue (also known as breakbone fever) is a viral disease spread by mosquitoes
• Like malaria, it is spreading because many environments are getting warmer and wetter and allowing mosquito populations to increase
www.windows2universe.org
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Dengue
www.windows2universe.org
Dengue is projected to spread with global warming
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Schistosomiasis• Schistosomiasis is a disease spread by
parasitic worms.• It is spread by snails, and is a problem in
wet tropical climates where the snails are abundant and water is often contaminated with human waste.
www.windows2universe.org