A resident in Windsor-Essex has tested positive for the West Nile Virus.
It's the first human case in this region for the illness.
The virus is spread through mosquitoes.
Most people will never develop symptoms and will not know that they have the virus.
About 25% develop a fever.
The Windsor-Essex County Health Unit is reminding people to protect themselves from mosquito bites including using insect repellents that contain deet.