Interactive Dashboard

At a glance

The National Respiratory and Enteric Virus Surveillance System (NREVSS) is a laboratory-based system that monitors respiratory and enteric virus activity.

The National Respiratory and Enteric Virus Surveillance System (NREVSS)

Overview

The National Respiratory and Enteric Virus Surveillance System (NREVSS) monitors viral activity in the United States. In this surveillance system, participating U.S. laboratories voluntarily report weekly to CDC the total number of tests performed to detect these viruses and the total number of those tests that were positive. They also report the specimen type, location, and week of collection. NREVSS allows for timely analysis of data to monitor viral seasons and circulation patterns.

All data graphs on this site are updated weekly.

NREVSS Dashboard

  1. Select a View Information can be viewed as national data (all participating NREVSS laboratories) or filtered by HHS region, surveillance year, or virus. To view respiratory or enteric virus data, select the respective view.
  2. Select Virus Select one or more viruses.

How it's used

NREVSS was created in the 1980s to monitor seasonal trends in respiratory virus activity and was later expanded to include select enteric viruses. Influenza testing data reported to NREVSS is integrated with CDC Influenza Surveillance.

Each week, participating U.S. laboratories from university and community hospitals, state and county public health departments, and commercial entities voluntarily report:

  • the total number of tests performed
  • the test type used for detection
  • the number of those tests with positive results

Respiratory test results on the dashboard only include results from nucleic acid amplification tests (NAATs), also referred to as polymerase chain reaction (PCR) detection methods. CDC makes NREVSS data available through this website.

CDC also publishes periodic summaries and alerts based on NREVSS data in CDC's Morbidity and Mortality Weekly Report and other peer-reviewed journals.

We anticipate that NREVSS will continue to play an important role in describing the temporal and geographic circulation patterns of respiratory and enteric viruses—including changes in the typical annual circulation patterns and identifying viral outbreaks. NREVSS has proven to be a relatively simple and practical surveillance system that will continue to be an important part of CDC's efforts to treat, prevent, and control respiratory and enteric viral diseases.

Viruses monitored in NREVSS

The following viruses are monitored by NREVSS:

Key surveillance reports

Severe Acute Respiratory Syndrome Coronavirus Type-2 Reports

Influenza Activity and Surveillance

  • A weekly influenza surveillance report and a dynamic visualization allowing user access to influenza data are available here.

Common Human Coronavirus Surveillance Reports

Human Metapneumovirus Surveillance Reports

Parainfluenza Virus Reports

RSV Surveillance Reports

Rotavirus Surveillance Reports

  • More detail about rotavirus and publications are available here.

Norovirus Surveillance Reports

  • More detail about norovirus and publications are available here.
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Content Source:
National Center for Immunization and Respiratory Diseases; Coronavirus and Other Respiratory Viruses Division