Health officials in Mobile County have confirmed a human case of Eastern equine encephalitis, a rare and potentially deadly mosquito-borne virus, after lab testing came back positive for a local resident. The patient, a 66-year-old man who lives in the 36618 ZIP code area, remained hospitalized as of Friday, according to information released by the Mobile County Health Department.
County Health Officer Dr. Bernard Eichold described Eastern equine encephalitis, often shortened to EEE, as one of the most dangerous mosquito-transmitted illnesses found in the United States. The disease carries a mortality rate of roughly one in three among those infected, and survivors can be left with lasting brain damage. Eichold’s office stressed that while confirmed human cases are uncommon, the seriousness of the illness means residents should take the diagnosis as a reminder to stay vigilant about mosquito exposure.
EEE spreads through a cycle that starts with wild birds, which carry the virus without necessarily getting sick from it. Mosquitoes pick up the virus after feeding on an infected bird and can then pass it along to other animals, including horses and humans, through subsequent bites. Importantly, health officials noted the virus cannot spread directly from an infected person or horse to another person, meaning transmission depends entirely on mosquito activity. There is currently no vaccine available to protect humans from the disease, making prevention the primary defense.
To track the threat, the county’s Vector Control division maintains a network of sentinel poultry flocks stationed at points around Mobile County. These birds are periodically tested, giving health officials an early warning system for mosquito-borne viruses circulating in the area. Vector Control crews also trap mosquitoes throughout the county and test the samples for EEE, West Nile virus and St. Louis encephalitis, allowing the department to track which viruses are active in a given season.
On the ground, inspectors focus much of their effort on eliminating mosquito breeding grounds before adult populations can grow. Standing water is the primary target, since that’s where mosquitoes lay eggs, and crews use both portable equipment and truck-mounted sprayers to apply larvicide treatments in identified problem areas. Officials say this approach is generally more effective and cost-efficient than trying to control adult mosquito populations after they’ve already emerged.
Residents who want their property checked for standing water or mosquito breeding sites can contact Vector Control directly, though officials caution that response times vary. Because the division fields a high volume of calls, service requests are handled on a first-come, first-served basis, and some residents may wait a few days before an inspector arrives. In the meantime, health officials recommend the same basic precautions that guard against all mosquito-borne illnesses: draining standing water around the home, using insect repellent, and dressing to minimize exposed skin during peak mosquito activity, especially around dawn and dusk. Parents are also urged to watch children’s mosquito bites for signs of secondary infection that may require a doctor’s attention.