TY - JOUR T1 - Nation in Brief JF - The Nation's Health JO - Nations Health SP - 10 LP - 10 VL - 47 IS - 6 AU - Kim Krisberg Y1 - 2017/08/01 UR - http://www.thenationshealth.org/content/47/6/10.abstract N2 - Parasitic illness outbreaks linked to swimming pools and water playgrounds have doubled over the last few years, the Centers for Disease Control and Prevention reported in May. ER -