SPRINGFIELD, Ohio — The West Nile virus has been found in a ninth Ohio county.

        Tests on Friday confirmed the virus had infected a dead crow in Springfield, Clark County Health Commissioner Charles Patterson said.

        Infection in birds does not pose an immediate threat to humans, and no human cases have been reported in Ohio.

        The state Health Department has requested that any dead crows or blue jays be reported to local health departments.

        The virus first appeared in the United States two years ago. It was first confirmed in Ohio in early August, in a Lake County blue jay.

        West Nile has since been found in birds in Cuyahoga, Summit, Fairfield, Mahoning, Lucas and Franklin counties. One Franklin County mosquito tested positive.

        Earlier this week, the virus was confirmed in Montgomery County — the farthest southwest it has been found in Ohio.

        West Nile causes a flu-like illness. For older people and those with weak immune systems, it can cause deadly encephalitis, or inflammation of the brain.

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