The Office of the State Veterinarianannounced Delaware's third case of West Nile Virus (WNV) found in horses this year. The Milwaukee Health Department is advising residents to continue to protect themselves against mosquito bites.
The most serious cases of West Nile can be deadly.
The health unit says its investigation has not be able to verify where the person contracted the disease since there had been some travel to areas outside the province where mosquitoes were present.
The health ministry called on local authorities to take measures to prevent the spread of West Nile, adding the threat will decline as the weather gets cooler. These individuals are urged to take precautions to avoid being bitten by mosquitoes during mosquito season, which extends from June 1 through November 1.
"People should use insect repellent whenever they go outside because mosquitoes can bite during the day and night depending on location and type". The first and second cases were diagnosed in August, and occurred in a 3-year-old Standardbred mare residing in Kent County with unknown vaccination status and a 2-year-old thoroughbred mare also in Kent County that was not up-to-date on its WNV vaccine. Horses, humans and some species of birds are the most susceptible to West Nile Virus but dogs and cats can become infected.
Dusk and dawn are times when mosquitoes are most active. About one in five people who are infected will develop a fever along with other symptoms such as headache, body aches, joint pain, vomiting, diarrhea or rash.
Mosquito proof your home by removing standing water around your property and ensure screens are free from breaks or rips.
However, in rare instances, the virus can cause meningitis, encephalitis or death.
"Past surveillance for West Nile virus in our region has shown that the virus is established within Simcoe Muskoka and that we need to be aware", said Dr. Gardner.