OLYMPIA, Wash. -- State officials say West Nile virus has been confirmed in two more people in Washington state, bringing the total this year to four cases.

The state Health Department said Thursday that a Benton County woman in her 50s who contracted the virus in state was hospitalized. A teen boy who lives in Clark County got the virus while traveling.

Last week, officials announced two other cases, a Pierce County woman in her 70s was likely exposed to the virus while traveling out of state, and a Yakima man in his 30s hadn't left the state.

West Nile Virus is most commonly transmitted through mosquito bites.

To avoid mosquito bites, the Washington State Department of Health advises you to stay indoors around dawn and dusk when mosquitoes are most active and use a mosquito repellent when mosquitoes are active.

Mosquitoes are often found near standing water, so be sure to turn over old buckets or cans around your home, empty water from old tires and frequently change water in birdbaths, pet dishes and water troughs.

West Nile Virus can cause encephalitis or meningitis. People over age 50 have the highest risk. Symptoms can include fever, headache, body aches, neck stiffness, stupor, disorientation, tremors, convulsions, muscle weakness, paralysis, and coma.

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