The August CDC Morbidity and Mortality Weekly Report featured several articles about waterborne diseases, including “Surveillance for Waterborne Disease Outbreaks Associated with Drinking Water – United States, 2011-2012“. In 2011 and 2012, CDC’s Waterborne Disease and Outbreak System identified 32 outbreaks, 431 illnesses, 102 hospitalizations, and 14 deaths related to drinking water. Compared to 36 and 35 outbreaks in 2007-2008 and 2009-2010 respectively, the number of outbreaks remained constant. However, Legionella has caused increasingly more outbreaks over the years, which is concerning due to the potential for severe illness and the challenges involved in identifying and stopping Legionella outbreaks. For more information, visit CDC’s website.