Miami-Dade beaches have been affected by unsafe bacteria levels, prompting a health alert from Florida health officials. The warning advises swimmers to avoid certain beaches in the area. The bacteria levels detected at three Miami-Dade beaches are considered unsafe, leading to the warning.

To stay safe, swimmers are advised to check advisories before heading out to the beaches. Further details about the affected beaches and the bacteria levels are available from Florida health officials. It is recommended to check for updates before visiting any Miami-Dade beaches to ensure a safe experience.