RSV State Trends

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Participating laboratories report weekly to CDC the total number or RSV tests performed that week, and the number of those tests that were positive. Because reporting delays may be expected for some laboratories, data shown for the more recent weeks may be less complete than others. Each point on the trend graphs below displays the average number of RSV tests that were performed, and the average percent of those that were positive from three adjacent weeks: the specified week, and the weeks preceding and following it. This is also known as a centered 3-week moving average.

State-level trends are only displayed when two or more labs report RSV antigen testing data for at least 36 of the prior 52 weeks. If data for a state are too sparse to display during a particular week, we recommend viewing the trends at the HHS Region or Census Division level that contains the state of interest.

In the United States, RSV infections typically occur at the time of annual community outbreaks, during late fall, winter, and early spring. There may be variation in the timing of outbreaks between regions and between communities in the same region.

Click on the map below to display RSV circulation in each state.

National U.S. Image Map, RSV State Trend Selector Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming Delaware Maryland Washington, D.C. New Hampshire New Jersey Massachusetts Connecticut West Virginia Vermont Rhode Island
About HHS RegionsExternal

Total Antigen Tests

Total PCR Tests