The National Respiratory and Enteric Virus Surveillance System (NREVSS) is a laboratory-based system that monitors temporal and geographic patterns associated with the detection of respiratory syncytial virus (RSV), human parainfluenza viruses (HPIV), respiratory and enteric adenoviruses and rotavirus.

All data graphs on this site were last updated on October 2, 2012

In 2007, data collection for rhinovirus, enterovirus and human metapneumovirus began. Influenza specimen information, also reported to NREVSS, is integrated with CDC Influenza Surveillance. Data are collected from collaborating university and community hospital laboratories, selected state and county public health laboratories, and commercial laboratories. These participating laboratories report virus antigen detections, isolations by culture and polymerase chain reaction (PCR) results on a weekly basis.

NREVSS data are made available to public health professionals, health care providers, and the public. Annual summaries and alerts based on NREVSS data have been published periodically in CDC's Morbidity and Mortality Weekly Report and in peer-reviewed journals.

We anticipate that NREVSS will continue to play an important role in describing the temporal and geographic patterns of respiratory and enteric viruses--including deviations from the expected patterns. NREVSS will also be useful in efforts to treat, prevent, and control diseases caused by these agents. NREVSS has proven to be a relatively simple and practical surveillance system that has been and will continue to be an important part of CDC's efforts to prevent and control respiratory and enteric viral diseases.