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RSV HHS Regional 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.

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.

HHS Region Image Map, HHS Region Selector

HHS Region 1 -- Boston: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont HHS Region 2 -- New York: New Jersey, New York, Puerto Rico, and the Virgin Islands HHS Region 2 -- New York: New Jersey, New York, Puerto Rico, and the Virgin Islands HHS Region 3 -- Philadelphia: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, and West Virginia HHS Region 4 -- Atlanta: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee HHS Region 5 -- Chicago: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin HHS Region 6 -- Dallas: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas HHS Region 7 -- Kansas City: Iowa, Kansas, Missouri, and Nebraska HHS Region 8 -- Denver: Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming HHS Region 9 -- San Francisco: Arizona, California, Hawaii, Nevada, American Samoa, Commonwealth of the Northern Mariana Islands, Federated States of Micronesia, Guam, Marshall Islands, and Republic of Palau HHS Region 10 -- Seattle: Alaska, Idaho, Oregon, and Washington HHS Region 10 -- Seattle: Alaska, Idaho, Oregon, and Washington

About HHS Regions


Boston HHS Region 1

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New York HHS Region 2

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Philadelphia HHS Region 3

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Atlanta HHS Region 4

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Chicago HHS Region 5

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Dallas HHS Region 6

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Kansas City HHS Region 7

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Denver HHS Region 8

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San Francisco HHS Region 9

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Seattle HHS Region 10

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