How Climate Change Impacts Disease Risk and Spread
How Climate Change Impacts Disease Risk and Spread
Global · Published Jul 25, 2026
Climate change is altering weather patterns, leading to conditions that may increase the risk and spread of diseases.
Learn how extreme weather events can affect human health and what steps can help mitigate these risks.

How Extreme Weather Affects Disease Spread

Extreme weather events can disrupt ecosystems and human communities, creating opportunities for diseases to spread. Droughts can force animals and humans into closer contact as they compete for limited water resources, increasing the risk of zoonotic diseases. Flooding, on the other hand, can lead to the proliferation of bacteria and viruses in water sources, causing outbreaks of illnesses like cholera. Wildfires can worsen air quality, exacerbating respiratory conditions and making individuals more susceptible to infections.

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