As part of its ongoing mosquito control efforts, Nassau County is continuing its ground spraying next week in selected communities, "based on the persistent presence of West Nile virus and mosquito activity at these locations," according to a news release issued Friday by the health department.

To be treated Tuesday are the City of Long Beach, Atlantic Beach, Atlantic Beach West, East Atlantic Beach, and Lido Beach.

Scheduled for Thursday are sections of Baldwin, Baldwin Harbor, and Oceanside.

Treatments are planned, weather permitting, from 8 p.m. to no later than 4 a.m., using the pesticide Scourge, which health officials say has a low chance of leading to medical problems. Still, residents might want to avoid exposure, they say, with children and pregnant women especially advised to stay indoors during the treatment and for 30 minutes after.

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Spraying has become increasingly important as both Nassau and Suffolk counties try to contain West Nile virus, which is spread through bites from infected mosquitoes.

For updates and more information call the county's treatment hotline at 888-844-8657 or check the health department's website at