"This is the first 2013 case of West Nile virus detected in a person for Marin County. It is an important reminder to take precautions against mosquito bites," said Dr. Matt Willis, Marin County Public Health Officer.
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 2013, West Nile virus has been detected in 37 California counties with reported human cases of West Nile virus. “West Nile virus activity is greatest during the summer months,” said Willis.
Marin County Public Health 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 all sources of standing water on your property, including flower pots, old car tires, rain gutters 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.
Please visit us online at www.marincounty.org/hhs for the latest updates on West Nile virus activity in Marin. 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 and dead tree squirrels on the website or by calling toll-free 1-877-WNV-BIRD (968-2473).