Sentinel Chicken Tests Positive for West Nile Virus in Mobile County 08.27.26
August 27, 2026
Sentinel Chicken Tests Positive for West Nile Virus in Mobile County
MOBILE, Ala. – A sentinel chicken monitored by the Mobile County Health Department’s Vector Services program has tested positive for West Nile virus (WNV), confirming that the virus is circulating in Mobile County.
The positive chicken was in the 36613 ZIP code area, which includes Chickasabogue Park. The area falls within three mosquito-spraying routes and has been treated 19 times this season as part of ongoing mosquito-control efforts.
“West Nile virus is present in our county, and this detection is an important reminder for residents to protect themselves from mosquito bites,” said Dr. Kevin Michaels, Health Officer for Mobile County. “This is the first case in our sentinel chickens this year. Vector Services will increase mosquito-control activity in and around the 36613 area, continue monitoring our sentinel chicken flocks, and work to identify mosquito populations that may be carrying the virus.”
MCHD Vector Services will conduct additional spraying, door-to-door surveys in nearby areas, and adult mosquito trapping and testing for West Nile virus.
Protect Yourself from Mosquitoes
Residents—especially those participating in outdoor activities- are encouraged to take simple precautions to reduce mosquito bites:
- Use an Environmental Protection Agency-registered insect repellent containing DEET, or another approved active ingredient.
- Wear long-sleeved shirts and long pants when outdoors, particularly around dawn and dusk.
- Stay and sleep in places with air conditioning or intact window and door screens.
- Empty, cover, clean, or treat containers that hold standing water around homes, yards, worksites, and outdoor-event locations.
Mosquitoes can breed in very small amounts of standing water, including water found in buckets, flowerpots, tires, birdbaths, pet bowls, gutters, tarps, and outdoor containers.
About West Nile Virus
West Nile virus is maintained in a cycle between birds and mosquitoes. Mosquitoes become infected when they feed on infected birds and can then transmit the virus to people, horses, and other animals through subsequent bites.
Most people infected with West Nile virus do not develop symptoms. However, some may experience fever, headache, body aches, nausea, vomiting, or rash. In rare cases, infection can cause serious neurologic illness, including high fever, severe headache, stiff neck, confusion, muscle weakness, disorientation, tremors, paralysis, or seizures. Anyone experiencing severe symptoms should seek medical attention promptly.
West Nile virus cannot spread from person to person or from horses to people. While horses can be vaccinated against WNV, no vaccine is currently available for humans.
The risk for mosquito-borne encephalitis viruses is generally greatest from August until the first fall freeze.
Sentinel Surveillance
Since 1985, MCHD Vector Services has monitored sentinel poultry flocks placed strategically across Mobile County to detect mosquito-borne viruses. Blood samples are collected from sentinel chickens each Monday and sent to a laboratory for testing, with results typically available later in the week.
In addition to monitoring 13 sentinel chicken coops, Vector Services traps and tests mosquitoes for West Nile virus, Eastern equine encephalitis (EEE), and St. Louis encephalitis.
To report a mosquito concern, contact MCHD Vector Services at 251-690-8124. Learn more about mosquito control and access the online service-request portal for mosquito and rodent concerns at mchd.org/vector-control.
