Dozens of US beaches closed or hit with swimming advisories on July Fourth

Dozens of beaches in the U.S. are closed or under swimming advisories on the Fourth of July, as a result of high levels of bacteria in the water.

Local and state governments have issued warnings about shores in their own areas but there is no centralized database to determine whether a beach is under a health advisory. The Centers for Disease Control and Prevention (CDC) recommends that beachgoers check online for health advisories before heading out to their preferred shores on the holiday.