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Experts worry as parts of the US see a huge drop in mosquitoes
The Independent • • health
Key Points:
- Mosquito populations in Western and Midwest U.S. states, including Minnesota, North Dakota, and Colorado, have decreased by 50-70% this year due to a historic drought driven by climate change.
- Despite fewer mosquitoes, cases of mosquito-borne diseases like West Nile virus are rising, with 143 cases and five deaths reported in Arizona alone this year, as drought conditions concentrate mosquitoes and birds around shrinking water sources, increasing virus transmission.
- West Nile virus, introduced to the U.S. in 1999, causes severe symptoms and over 130 deaths annually in the contiguous U.S., with current outbreaks particularly high in Arizona, Colorado, and Utah.
- Mosquito species vary in their response to drought, with some thriving near shrinking water bodies, and experts warn that mosquito populations could rebound or increase due to climate change creating more suitable breeding conditions.
- Scientists are exploring biohacking and community-based control methods to manage mosquito populations, but experts emphasize that mosquitoes have been part of the human environment for over a million years and are unlikely to be completely eradicated.
