Mosquito season brings West Nile virus concern in Yuma County

YUMA, Ariz. (KYMA) - It's that time of year again: Mosquito season, and with it comes the viruses mosquitoes can carry, including West Nile virus.

Peak mosquito season in Arizona happens during the hot, humid summer months, from July through September, and already we're seeing some West Nile activity.

At least three mosquito pools in Yuma County have tested positive for the West Nile virus this year.

While there are no confirmed human cases in Yuma, the CDC has confirmed more than 70 human cases across the state. Last year, the Yuma County Public Health Services District confirmed one laboratory-verified human case.

"It's pretty common. We find it every year. Typically, depending on the year and the rains, we may find more one year and less the next. This year is a pretty typical year for West Nile virus, but we're only halfway through the season," said Richard Cuming, vector control program supervisor with YCPHSD.

According to the CDC, there are more than 3,000 different types of mosquitoes worldwide. Mosquitoes become infected with germs, such as viruses and parasites, when they bite infected people and animals, and even a few infected mosquitoes can start an outbreak in a community.

"West Nile virus is actually the leading cause of mosquito-borne disease in the United States. Mosquitoes are called vectors because they can transmit diseases from one animal to another. West Nile virus not only affects humans, but it also impacts horses and dogs," said Laura Rosenwald, entomologist with the National Pest Management Association.

According to the State of California, Imperial County also had one mosquito pool test positive last year, but no laboratory-verified human cases.

Last month, Imperial County reported three mosquito pool testing positive for the virus.

The CDC says mosquitoes are the deadliest animals on the planet, killing more people than any other creature in the world, but there are ways to protect yourself from the virus.

"If you notice mosquitoes, give us a call and we will set traps and do an investigation to try to find out where they're breeding. To protect yourself, wear long sleeves, long pants, light-colored clothing, and use an EPA-approved insect repellent," Cuming said.

As mosquito season continues, it's important to stay alert.