Hastings Prince Edward Public Health says it has found a pool of mosquitoes carrying the West Nile virus in the Picton area.
The health unit says this is the first direct evidence of West Nile virus in the area this summer.
West Nile virus is a viral infection found in birds that then gets carried by mosquitoes that feed on the infected birds.
West Nile can be spread to humans and animals through bites from the infected mosquitoes.
The majority of infected individuals will have mild or no symptoms.
Some early symptoms can include fever, muscle weakness, stiff neck, confusion, severe headache, sudden sensitivity to light, tremors, numbness, or vision loss.
The elderly and those with certain chronic medical problems, including problems with their immune systems, are more susceptible.
Mosquitoes are most active at dawn (first light) and dusk (just before dark). If you need to be outside during this time, the simplest precaution is to wear light-coloured, long-sleeved shirts and long pants, socks and a hat, and use an insect repellent containing DEET or Icaridin.
Mosquitoes lay their eggs in standing water (water that does not move/flow). It is advisable to get rid of any standing water around your home (for example in flower pots, rainwater barrels, children’s toys, wading pools). Ensure you have screens on windows to keep mosquitoes out of your home.
If you encounter a dead bird or other dead animal, do not handle it with bare hands.