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Respiratory Syncytial Virus (RSV) in Florida

Florida Health

Disease Control

Respiratory Syncytial Virus Surveillance

Activity Summary

Week 24 ( June 12 - June 18, 2022 )

Respiratory syncytial virus (RSV) is a common respiratory virus that usually causes mild, cold-like symptoms. Young children and older adults, especially those with certain underlying health conditions, are at higher risk for severe illness from RSV. Prophylaxis is available for children who qualify. For more information, contact your health care provider.

In week 24, RSV activity in children <5 years decreased. Levels were above those seen at this time in past years.

In week 24, the percent of emergency department visits for RSV among children <5 years decreased. RSV activity in children <5 years was notably above levels observed at this time in typical years.

In week 24, the percent of emergency department and urgent care center visits for respiratory syncytial virus among children less than five years decreased. Levels were above those observed at this time during typical seasonal activity. Levels at this time were lower than the 2020-2021 season.

In week 24, the percent of specimens testing positive for parainfluenza 1-3, rhinovirus, adenovirus, and human metapneumovirus increased while the percent of specimens testing positive for influenza unspecified, and RSV decreased.

In week 24, zero new RSV associated outbreaks were reported. Since week 30, 2021, outbreaks have been reported in three of Florida's regions.

RSV Surveillance

A statewide RSV surveillance system was implemented in Florida to support clinical decision-making for prophylaxis of premature infants.

Currently, one of Florida’s five regions is in RSV season.

Florida’s RSV season is longer than the rest of the nation and has distinct regional patterns. The Florida Department of Health established regional RSV seasons based on activity thresholds provided by the Centers for Disease Control and Prevention.

The determination of unique seasonal and geographic trends of RSV activity in Florida has important implications for prescribing patterns for initiating prophylaxis to children at high risk for complications from RSV infection. The American Academy of Pediatrics currently recommends pre-approval for prophylactic treatment be made based on state surveillance data.

To learn more about RSV in Florida, please visit

NNorthwest Region, October- April (not currently in season): Escambia, Santa Rosa, Okaloosa, Bay, Washington, Holmes, Jackson, Calhoun, Gulf, Gadsden, Liberty, Franklin, Wakulla, Leon, Jefferson North Region, September-March (not currently in season): Madison, Taylor, Hamilton, Suwannee, Lafayette, Dixie, Levy, Alachua, Gilchrist, Union, Bradford, Columbia, Barker, Nassau, Duval, Clay, St. Johns, Putnam Central Region, August-March (not currently in season): Citrus, Marion, Flagler, Volusia, Lake, Sumter, Citrus, Hernando, Pasco, Pinellas, Hillsborough, Osceola, Brevard, Orange, SeminoleSouthwest Region, September-April not currently in season): Polk, Manatee, Hardee, Highlands, Okeechobee, Glades, Charlotte, Desoto, Sarasota, Lee, Hendry, Collier Southeast Region, January-December (currently in season): Indian River, St. Lucie, Martin, Palm Beach, Broward, Miami-Dade, Monroe

The Figure shows Florida’s RSV regional season breakdown. Regions that are currently in RSV season are marked with pink stars.

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