Schaffner talks with ABC News about the safety of Louisiana Parish water supply
For the second time in two years, officials have found potentially deadly amoeba in the water supply of a parish outside New Orleans. William Schaffner, M.D., an infectious disease expert at Vanderbilt University School of Medicine, said people in the area should take steps to stay safe, including keeping their pool chlorinated, and stopping children from playing with hoses to stay cool.