West Nile found in new mosquito samplings

Five new samples of mosquitoes collected in the Yuma area have found to be infected with the West Nile virus, according to the Yuma County Pest Abatement District.

Two additional samples have been sent to the Arizona Department of Health Services for further testing.

The West Nile virus was found in mosquito samples collected Monday in two locations in the Yuma East Wetlands below the Territorial Prison overlook, Avenue 7E near the Gila River and the Betty's Kitchen and Mittry Lake boat ramp areas.

Previously this month, mosquitoes from the North Gila Valley and Betty's Kitchen area tested positive for West Nile.

"We're trying to educate people as to where we know West Nile activity is going on so they can make educated decisions," said YCPAD manager Chris Sumner.

Sumner said the virus usually turns up in mosquito samples every year between the months of May and October, so West Nile cases should not be considered out of the ordinary.

"It's getting well established this year, but I don't know if I can characterize it as better or worse. Sampling is a hit-and-miss thing."

YCPAD sprayed the Yuma East Wetlands this week to reduce adult mosquito numbers, he said. Additionally, a bacterial product that kills larvae in the water was dropped by aircraft.

Mosquitoes contract the virus from birds they have bitten, and then pass it along to humans they bite. Most infected people report no symptoms, but some may experience severe fever or headache.

To prevent exposure to West Nile, Sumner suggested people be prudent about where they go and how they prepare, especially after dark. Mosquitoes carrying West Nile are nighttime biters, he said.

The use of repellent is recommended. Products containing either DEET or Picaridin are equally effective, and both are readily available in stores.

Sumner said he is concerned about swimming pools that are not properly maintained. These "green pools" attract mosquitoes and can be a breeding ground for West Nile, making the danger incredibly close to home.

"Green pools are right in amongst where people live. You don't have to go to the river but you have to live in your house," he said.

Those who are concerned about "green pools" may call YCPAD and make a report. Pools will be treated, but not drained or cleaned.

"We render them safe but we don't make them pretty."

To report a pool, call 726-1030 and leave a message detailing the pool's location.