Why Does Mosquito Control Matter?

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mosquito on light-colored human skin

Some species of mosquitoes are involved in the transmission of important human and veterinary disease-causing agents (pathogens). In California these diseases include encephalitis (several viruses), malaria (a protozoan) and dog heartworm (a roundworm). The biological transmission of these and other mosquito-borne pathogens is a complex and highly evolved interaction among the vertebrate host, the pathogen and the mosquito (vector). Most pathogens of humans, such as measles, hepatitis or HIV (AIDS) viruses cannot develop in mosquitoes, whereas many pathogens of mosquitoes such as iridescent virus cannot develop in vertebrates.

The best way to prevent diseases that are spread by mosquitoes is to protect yourself from mosquito bites: use mosquito repellent on clothes and exposed skin when going outdoors (especially at dawn and dusk) and wear long sleeves and pants for extra protection. You can also keep biting mosquitoes from breeding near your home by draining standing water around your yard.

Some species of mosquitoes are involved in the transmission of important human and veterinary disease-causing agents (pathogens). In California these diseases include encephalitis (several viruses), malaria (a protozoan) and dog heartworm (a roundworm). The biological transmission of these and other mosquito-borne pathogens is a complex and highly evolved interaction among the vertebrate host, the pathogen and the mosquito (vector). Most pathogens of humans, such as measles, hepatitis or HIV (AIDS) viruses cannot develop in mosquitoes, whereas many pathogens of mosquitoes such as iridescent virus cannot develop in vertebrates.

The best way to prevent diseases that are spread by mosquitoes is to protect yourself from mosquito bites: use mosquito repellent on clothes and exposed skin when going outdoors (especially at dawn and dusk) and wear long sleeves and pants for extra protection. You can also keep biting mosquitoes from breeding near your home by draining standing water around your yard.

Page last updated: 28 May 2026, 02:05 PM