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DHSS Press Release



Molly Magarik, Secretary
Jill Fredel, Director of Communications
302-255-9047, Cell 302-357-7498
Email: Jill.Fredel@delaware.gov

DPH Media Contact:
Jennifer Brestel
Email: DPHMedia@Delaware.gov

Date: September 3, 2021
DHSS-9-2021





DPH ANNOUNCES FIRST HUMAN CASE OF WEST NILE VIRUS REPORTED IN DELAWARE SINCE 2018


DOVER (September 3, 2021) - The Division of Public Health (DPH) announced today that a 69-year-old Kent County man has become infected with West Nile Virus (WNV), the state's first case of human WNV since 2018, when 10 human WNV cases were reported, including two deaths from the illness. An epidemiological investigation is currently ongoing to confirm any travel history or sources that could have led to transmission. To protect the patient's privacy, no more information will be provided on the individual at this time.

"We're sad to learn that a case of West Nile Virus has been reported in Delaware," said DPH Director Dr. Karyl Rattay. "West Nile Virus can be very serious and even deadly, particularly in vulnerable populations. Please take all proper precautions when going outdoors and there is a possibility of being bitten by mosquitoes, like wearing insect repellent, especially if you are among a vulnerable population."

The mosquitoes that cause WNV bite primarily from dusk (evening) to dawn (morning). However, other mosquitoes that cause diseases such as chikungunya, dengue fever, and Zika can bite during the day. It is important to protect yourself by wearing insect repellent whenever you go outdoors.

WNV is a mosquito-borne illness that can cause serious health problems. WNV is transmitted by mosquitoes, generally in summer and fall, with a peak period for disease transmissions from mid-August to mid-October. Nearly 80 percent of people infected with WNV will not become ill. While only a little less than 20 percent of those infected with the virus will develop West Nile fever with mild symptoms (fever, headache, body aches, a skin rash on the chest or back and swollen lymph glands), one in 150 people infected will develop severe infection (West Nile encephalitis or meningitis).

Symptoms of severe WNV infection include headache, high fever, stiff neck, and/or tremors and muscle weakness. The elderly and those with weakened immune systems are most at risk. Anyone who experiences any of these severe symptoms should seek medical help immediately. Symptoms may progress to stupor, disorientation, coma, convulsions, paralysis and possibly death.

Mosquito Bite Prevention

To avoid mosquito bites and reduce the risk of infection, individuals should:

The Department of Natural Resources and Environmental Control's (DNREC) Mosquito Control section announced WNV in sentinel chickens for the first time in 2021 in July. Delawareans are reminded that the possibility of contracting mosquito-transmitted diseases, including WNV and Eastern Equine Encephalitis (EEE), will continue until colder autumn temperatures in mid-October or later.

To report suspected cases of human WNV, call the DPH Office of Infectious Disease Epidemiology at 1-888-295-5156.

For more information about mosquitoes and mosquito-borne illnesses, use the following resources:

For more information on what you can do to prevent West Nile Virus, visit the Centers For Disease Control and Prevention's website, www.cdc.gov/westnile/prevention/index.html

Anyone who is deaf, hard of hearing, Deaf-Blind or speech disabled can contact DPH by dialing 711 first using specialized devices (i.e. TTY, TeleBraille, voice devices). The 711 service is free and to learn more about how it works, please visit delawarerelay.com.

DPH, a division of DHSS, urges Delawareans to make healthier choices with the 5-2-1 Almost None campaign: eat 5 or more fruits and vegetables each day, have no more than 2 hours of recreational screen time each day (includes TV, computer, gaming), get 1 or more hours of physical activity each day, and drink almost no sugary beverages.



Delaware Health and Social Services is committed to improving the quality of the lives of Delaware's citizens by promoting health and well-being, fostering self-sufficiency, and protecting vulnerable populations.





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