Additional 2006 WNV cases confirmed in Pinal County

33

Pinal County health officials reported an additional six cases of West Nile Virus (WNV) disease in people, bringing the total of human WNV disease cases in Pinal County to 10 so far in 2006, with one death.

All six new cases are reported to be recovering. Of the 10 cases that have been reported to date, one was in the Florence area, two were in the Coolidge area, one was in the San Manuel area, four have been in the Casa Grande area, one was in the Queen Creek area, and one was in the Gila River Indian Community. The Pinal County Division of Public Health is investigating all cases.

An additional horse in the Casa Grande area was also reported to be WNV positive. The previous horse reported in 2006 was from the greater Florence area and has beeneuthanized. WNV is transmitted to humans and animals through the bite of an infected mosquito. Mosquitoes become infected with the virus when they feed on infected birds.

The overall risk of WNV to humans is low, and most people infected will not experience any noticeable symptoms. A small percentage of people may experience more serious forms of illnesses that can include lasting or permanent neurological effects. People over the age of 50, who are more likely to develop serious symptoms of WNV if they do get sick, should take special care to avoid mosquito bites.

“Although mosquito activity declines with cooler weather, we can expect mosquito activity to continue on warmer days. People still need to take steps to protect themselves from being bitten by mosquitoes,” said Tom Schryer, Pinal County Public Health Director, “It is important to eliminate sources of standing water where mosquitoes can breed and to wear protective clothing and a recommended insect repellent when outdoors, especially between dusk and dawn.”

The following measures will help protect you and your family from getting WNV:

Dump standing water from flower pots, toys, buckets, old tires and garbage cans.

Change water in flower vases, birdbaths, planters and animal watering pans at least twice a week.

Keep your yard clean.

Use insect repellent containing DEET, picaridin or oil of lemon eucalyptus when outside in areas where mosquitoes are active. Follow the directions on the container.

Take extra care to use repellent and protective clothing during evening and early morning — or consider avoiding outdoor activities during these times. The hours from dusk to dawn are peak biting times for many species of mosquitoes.

When weather permits, wear long-sleeves, long pants and socks when outdoors.

Repair or install screens on your home.

Horses are also susceptible to WNV. Horse owners are encouraged to talk with their veterinarians regarding the WNV vaccine for horses.

For health information about WNV, call the Pinal County Division of Public Health hotline at (866) 763-7252. You may also visit the Arizona Department of Health Services’ web site www.westnileaz.com or call the State Public Health Hotline at (602) 364-4500 or statewide toll-free at (800) 314-9243.

If you would like information concerning WNV, including locations for mosquito fogging in Pinal County, please call the mosquito hotline at (520) 866-6200 or (866) 287-0209, ext. 6200. For more information about mosquito-borne viruses and dead bird reporting, call the Pinal County Division of Environmental Health at (800) 231-8499, ext. 6807, or (520) 866-6807.