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First human West Nile virus infections this season in California reported

By Jon K. Brent, Anchor, jonkbrent@kionrightnow.com
Published On: Jun 22 2014 08:49:51 PM CDT
West Nile 2

West Nile virus is transmitted to humans and animals via Mosquito bites

SACRAMENTO, Calif. -

Two people have been tested positive for West Nile Virus, the first two of the season. The cases were reported by Contra Costa and San Joaquin Counties. State health managers warn it’s never too early to protect yourself and animal from the virus.

State Health Officer Dr. Ron Chapman, director of the California Department of Public Health says the patient from Contra Costa County has since recovered and been released from the hospital, and the patient from San Joaquin County has tested positive for the virus but is not showing symptoms at this time.

Chapman says, “These reported West Nile virus cases remind us that taking a few minutes to protect ourselves and our families from mosquito bites can make a big difference.”

West Nile virus is transmitted to humans and animals by the bite of an infected mosquito. The risk of serious illness to most people is low. However, some individuals – less than 1 percent – can develop a serious neurologic illness such as encephalitis or meningitis. People 50 years of age and older have a higher chance of getting sick and are more likely to develop complications. Recent data also indicate that those with diabetes and/or hypertension are at greatest risk for serious illness.

To date in 2014, West Nile virus has been detected in mosquitoes and birds in 19 California counties.

CDPH recommends that individuals prevent exposure to mosquito bites and West Nile virus by practicing the “Three Ds”:

  • DEET – Apply insect repellent containing DEET, picaradin, oil of lemon eucalyptus or IR3535 according to label instructions. Repellents keep the mosquitoes from biting you. DEET can be used safely on infants and children 2 months of age and older.
  • DAWN AND DUSK – Mosquitoes bite in the early morning and evening so it is important to wear proper clothing and repellent if outside during these times. Make sure that your doors and windows have tight-fitting screens to keep out mosquitoes. Repair or replace screens with tears or holes. 
  • DRAIN – Mosquitoes lay their eggs on standing water. Eliminate or drain all sources of standing water on your property, including buckets, old car tires, rain gutters, birdbaths, and pet bowls. If you know of a swimming pool that is not being properly maintained, please contact your local mosquito and vector control agency.

California’s West Nile virus website includes the latest information on West Nile virus activity in the state.

Californians are encouraged to report all dead birds on the website or by calling toll-free 1-877-WNV-BIRD (968-2473).