Norovirus Outbreak Among Evacuees From Hurricane Katrina-Houston, Texas, September 2005

In collaboration with Harris County Public Health and Environmental Services, Centers for Disease Control and medical personnel of Harris County Hospital District, Baylor College of Medicine and Texas Children's Hospital conducted enhanced surveillance to improve identification of acute gastroenteritis, investigate the apparent outbreak, identify the infectious agent, and implement measures for its control. Here, Palacio et al summarize the preliminary epidemiologic data from this investigation and underscores the challenges to managing a large and rapidly spreading outbreak of norovirus in crowded evacuee settings. A CDC editorial note is included.