Published: Aug 26, 2010 4:36 PM EDT
Updated: Aug 26, 2010 1:36 PM EDT

HOLLYWOOD, Fla. (AP) - Health officials have issued advisories banning swimming in parts of South Florida's Atlantic Coast.

Water quality tests showed high levels of bacteria on stretches of Hollywood's beaches and a small section of Dania Beach, near a popular pier.

Health officials said Wednesday that swimmers who come into contact with the bacteria could contract a stomach flu.

The advisories were based on tests taken Monday. Further water samples taken Wednesday may return different results.