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NEWORLEANS -- Traces of West Nile virus have been detected in mosquitos collected in Orleans Parish, city officials said, though there is no sign yet of any humans with the disease.

The city's Mosquito and Termite Control Board has stepped up its aerial and truck spraying for mosquitoes as a result of the discovery, according to a news release.

Mosquitoes have also tested positive for the virus in several other parishes. Just last week, a human case of the virus was reported in St. Bernard Parish.

Health officials urge residents to protect themselves by avoiding mosquito bites through limiting outdoor activities between dusk and dawn, using insect repellent and removing standing water from near their homes and businesses.

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