As a result of bacteria found at levels higher than state standards, seven beaches in Suffolk County have been closed to swimming, health officials said Tuesday.

They are: Amityville Village Beach; Copiague Harbor (Great South Bay) and Tanner Park Beach, Copiague; Venetian Shores Beach, Lindenhurst; Gold Star Battalion Park Beach, Huntington; Nathan Hale Beach Club, Huntington Bay; and the lake at Peconic Dunes County Park, Southold.

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Swimming in such contaminated water “can result in gastrointestinal illness, as well as infections of the eyes, ears, nose and throat,” said a health department release.

To learn more and stay up to date on affected beaches, residents can call the county’s bathing beach hotline at 631-852-5822 or check

www.suffolkcountyny.gov/health.