A dead crow collected here has tested positive for West Nile Virus, the San Bernardino County Department of Public Health announced Friday.

This was the third positive test for West Nile Virus in 2017 within the service area of the Division of Environmental Health Services Mosquito and Vector Control Program. When a dead bird tests positive for West Nile Virus, it means people are at a higher risk of being infected with the disease if bitten by a mosquito.

People bitten by an infected mosquito may develop West Nile fever and experience flu-like symptoms that can include fever, body aches, skin rash, and fatigue. In some people, West Nile fever can develop into a more serious form of the disease. If you have been bitten by mosquitoes and are experiencing these symptoms, contact your medical care provider.

Residents can protect themselves from West Nile Virus by following these tips:

• Drain or dump — Remove all standing water around your property where mosquitoes can lay eggs such as birdbaths, green swimming pools, ponds, old tires, buckets, flower pots, clogged gutters, or even puddles from leaky sprinklers.

• Avoid spending time outdoors at dawn and dusk — This is when mosquitoes are most active.

• Dress appropriately when outdoors — Wear shoes, socks, and long pants and long-sleeved shirts that are loose fitting and light colored.

• Apply insect repellent — Check that your insect repellent contains, DEET, Picaridin, IR3535, or oil of lemon eucalyptus and apply it according to manufacturer’s directions.

• Make sure doors and windows have tight-fitting screens. Repair or replace screens that have tears or holes to prevent mosquitoes from entering your home.

Property owners with pools are encouraged to keep them clean. Mosquitoes lay their eggs in unmaintained green pools.

To learn more about West Nile Virus or to report a dead bird visit westnile.ca.gov.

For more information or to report a green pool or mosquito breeding source, contact the County of San Bernardino Department of Public Health Division of Environmental Health Services at 800-442-2283.