First human West Nile Virus infection confirmed in Butte County

The Butte County Department of Public Health Department (BCPH) announced Thursday afternoon the first confirmed human West Nile Virus (WNV) infection in Butte County.

Posted: Jul 30, 2020 2:58 PM
Updated: Jul 30, 2020 4:48 PM

BUTTE COUNTY, Calif. – The Butte County Department of Public Health Department (BCPH) announced Thursday afternoon the first confirmed human West Nile Virus (WNV) infection in Butte County.

As of July 24, 2020, four human WNV infections have been reported in California, not including the Butte County case. WNV is active July through October, with August typically being the peak month in Butte County, according to health officials.

The infected person is over 65 years of age and is hospitalized with severe West Nile virus illness, according to BCPH.

“Mosquitoes capable of transmitting West Nile Virus are here," explained Danette York, Director of Butte County Public Health. "I urge you to protect yourself and your family by wearing appropriate clothing, using effective repellents and avoiding exposure at dusk and dawn."

WNV is transmitted to humans and animals by the bite of an infected mosquito. Mosquitoes become infected when they feed on infected birds.

According to BCPH, residents can reduce the risk of infection by practicing the “Three Ds”:

1. DEET – Use a proven insect repellent like DEET. Other recommended repellents include: picaradin, lemon eucalyptus oil, para-menthane-diol, or IR3535. Always use according to label instructions. DEET can be used safely on infants and children 2 months of age and older.

2. DAWN AND DUSK – Mosquitoes that transmit WNV bite in the early morning and evening. Wear proper clothing and repellent if outside during these times. Make sure that doors and windows have tight-fitting screens to keep mosquitoes out. Repair or replace screens with tears or holes.

3. DRAIN – Mosquitoes lay their eggs on standing water. Eliminate or drain all sources of standing water on your property, including flower pots, old car tires, rain gutters and pet bowls. For standing water that cannot be drained such as fountains, ponds, etc., consider adding “Mosquito Dunks” or mosquito fish, which feed on mosquito larvae. Report unmaintained swimming pools to the local Mosquito and Vector Control District at (530) 342-7350 or (530) 533-6038.

People infected with WNV generally fall into three categories: no symptoms (8 out of 10 people) a fever illness with fatigue and body aches (1 in 5 people), or severe illness with nerve-related symptoms such as encephalitis or meningitis (less than 1 in 150 people). For those who develop a severe WNV illness, symptoms may last several weeks and some symptoms may be permanent. People 50 years of age and older, and individuals with diabetes or hypertension, have a higher chance of getting sick and are more likely to develop complications

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 526685

Reported Deaths: 9684
CountyConfirmedDeaths
Los Angeles1958054760
Riverside38487738
Orange38066653
San Bernardino34017477
San Diego30516568
Kern21228151
Fresno15759138
San Joaquin11958180
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Marin518076
Monterey496634
Merced458351
Kings445356
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Sonoma311339
Madera211432
Placer195318
San Luis Obispo192616
Yolo161442
Santa Cruz11964
Butte10128
Napa9809
Sutter8406
San Benito6894
El Dorado6681
Lassen6320
Yuba5334
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Colusa3574
Mendocino3419
Glenn3321
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Lake2111
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It was a slightly cooler day for northern California today, but a more significant cooling is arriving tomorrow, along with a slight chance for showers and thunderstorms over the mountains of northwest California.
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