NORWALK - Health officials are warning residents to carry mosquito repellent this weekend as some of the insects have tested positive for West Nile virus near Rowayton Elementary School.

Officials say this is the first batch this year to test positive for the potentially deadly virus. They say all of the heat, humidity and wet weather in the area has made it an ideal breeding ground for mosquitoes.

Officials go on to say that most of the West Nile cases are along the I-95 corridor up to New Haven because of the type of mosquitoes that live in that area.

The virus manifests with flu-like symptoms and middle-aged and elderly people are at a greater risk of contracting it.

Health officials say infections peak in mid to late-August. Norwalk health officials say they are working with the state to decide when to start spraying.