RSV State Trends
Weekly laboratory test result data are collected on a voluntary basis. Because there is often a delay in reporting for some laboratories, data collection is less complete for the more recent weeks shown. The trend graph below displays a 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 during 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.
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