Implemented in 2009, the National Outbreak Reporting System provides surveillance for acute gastroenteritis outbreaks in the United States resulting from any transmission mode. Data from the first 2 years of surveillance highlight the predominant role of norovirus. The pathogen-specific transmission pathways and exposure settings identified can help inform… (More)
During 2012, global detection of a new norovirus (NoV) strain, GII.4 Sydney, raised concerns about its potential effect in the United States. We analyzed data from NoV outbreaks in 5 states and emergency department visits for gastrointestinal illness in 1 state during the 2012-13 season and compared the data with those of previous seasons. During August… (More)
Methods Persons included in the study were enrolled as New Vaccine Surveillance Network study participants (n = 1,897) and had a fecal specimen collected (n = 1,363, 72%) that was tested for norovirus and rotavirus (n = 1,295, 95%) (Technical Appendix Figure 1). Pentavalent rotavirus vaccine (RV5) for routine use in US infants in February 2006 in children… (More)
We report an increase in the proportion of genotype GI.6 norovirus outbreaks in the United States from 1.4% in 2010 to 7.7% in 2012 (p<0.001). Compared with non-GI.6 outbreaks, GI.6 outbreaks were characterized by summer seasonality, foodborne transmission, and non-health care settings.
BACKGROUND In 2010, researchers using novel laboratory techniques found that US-licensed rotavirus vaccines contain DNA or DNA fragments from Porcine circovirus (PCV), a virus common among pigs but not believed to cause illness in humans. We sought to understand pediatricians' and mothers' perspectives on this finding. METHODS We conducted three… (More)
To the Editor: Group A rotaviruses (RVAs) are a leading cause of acute gastroenteritis-associated deaths among children <5 years of age in developing countries (1). The genome of RVA consists of 11 double-stranded RNA segments that code for 11 or 12 viral proteins (VP1– VP4, VP6, VP7, nonstructural protein 1 [NSP1]–NSP5/6) (2). In 2008, the Rotavirus… (More)
Front cover photo: Two images, which include 1) norovirus and 2) hand washing. Abstract Problem/Condition: Approximately 179 million cases of acute gastroenteritis (AGE) occur in the United States each year, and outbreaks of AGE are a substantial public health problem. Although CDC has conducted national surveillance for waterborne and foodborne AGE… (More)