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Mosquitoes cling to the inside of a jar loaded with repellent during a test as part of a tour of the Center for Disease Control laboratory, Thursday, April 4, 2024, in Fort Collins, Colo. (AP Photo/David Zalubowski)
A mosquito sits in the bottom of a bottle containing a particular insecticide as part of a test during a tour of the Center for Disease Control laboratory Thursday, April 4, 2024, in Fort Collins, Colo. (AP Photo/David Zalubowski)
Nicole Foley checks a bottle to see the condition of mosquitoes exposed to a particular insecticide as part of a test during a tour of the Center for Disease Control laboratory, Thursday, April 4, 2024, in Fort Collins, Colo. (AP Photo/David Zalubowski)