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Resistance | February 2024

Mosquitoes that carry West Nile are becoming resistant to insecticides

John VanDenBerg suspects he was gardening when a mosquito got him.

It was September 2018, and VanDenBerg, then 67, had been feeling a little “off” for a few days, he said, like maybe he had the flu.

But one morning, as he was walking out of his Colorado home, he collapsed.

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