FOR IMMEDIATE RELEASE
July 27, 2012
S.C.’s first human case of 2012 West Nile Virus season identified
COLUMBIA, S.C.— A Charleston County woman has been identified as the first person to test positive for West Nile Virus in South Carolina this year, the state Department of Health and Environmental Control announced today.
“This woman was identified as positive for the virus after donating blood,” said Linda Bell, M.D., Interim State Epidemiologist. “All donated blood is routinely screened for WNV to ensure the safety of our blood supply. Fortunately, she is recovering from her illness.”
Dr. Bell said that WNV is a disease of birds transmitted to humans and animals through the bite of an infected mosquito. Mosquitoes become infected after feeding on infected birds. People bitten by an infected mosquito may become ill within 2 to 14 days with flu-like symptoms, including fever, headache, joint pain, muscle pain, and occasionally nausea and vomiting. Often they experience sensitivity to light and inflammation of the eyelids. Some may have a rash.
“The most important step anyone can take to prevent West Nile virus infection is to protect against being bitten by a mosquito,” said Dr. Bell. “The risk of serious illness is low. Less than one percent of people infected develop a potentially fatal swelling of the brain, known as encephalitis.”
So far this year in South Carolina, in addition to the person from Charleston County, WNV has been detected in one dead crow, one horse, and one mosquito pool.
DHEC recommends citizens pay attention to the “four Ds” as the most effective ways to prevent WNV:
- DEET – Apply insect repellent containing DEET, picaridin, oil of lemon, eucalyptus, or IR 3535 according to label instructions. Repellents help keep mosquitoes from biting. DEET can be used safely on infants and children 2 months of age and older.
- DRESS – Wear clothing that reduces the risk of skin exposure.
- DAWN AND DUSK – Exposure to mosquitoes is most common during the early morning and evening so it is important to wear repellent at that time. Make sure that your doors and windows have tight-fitting screens to keep out mosquitoes.
- DRAIN – Mosquitoes lay their eggs on standing water. Eliminate all sources of standing water on your property, including flowerpots, old car tires, rain gutters and pet bowls. If you have a pond, use mosquito fish (available from your local mosquito and vector control agency) or commercially available products to eliminate mosquito larvae.
For more information about WNV, visit http://www.scdhec.gov/environment/envhealth/pests/mosquitoes-wnv.htm and http://www.cdc.gov/ncidod/dvbid/westnile/index.htm.
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