By CBS 2 Chicago Staff

CHICAGO (CBS) — DuPage County confirms its first mosquitoes of the season to test positive for West Nile Virus.

They were found in Clarendon Hills and Lemont.

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Health officials are urging residents to take precautionary steps.

Those include draining standing water in yards, using insect repellent, wearing protective clothing and shoes.

Also residents should report any dead birds, which can be early signs of the virus’ presence.

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CBS 2 Chicago Staff