The U.S. Centers for Disease Control and Prevention (CDC) has renewed its warning against using tap water for nasal irrigation, as a newly published investigation linked the practice to infections of a deadly amoeba.
In a report published on Tuesday, CDC scientists examined ten cases where patients ranging in age from 32 to 80 became ill after contracting the amoeba acanthamoeba, a single-celled organism that can be found worldwide in soil and many types of water, including lakes, rivers, and tap water.
