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Respiratory Syncytial Virus (RSV) in Florida

Florida Health

Disease Control

Respiratory Syncytial Virus Surveillance

Activity Summary

Week 13 ( March 28 - April 3, 2021 )

Background

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 13, RSV activity in children <5 years increased and was above levels observed at this time in previous seasons.

One new RSV-associated outbreaks was reported in week 13. Three RSV-associated outbreaks have been reported since week 30, 2020 (beginning on July 19, 2020).

In week 13, the percent of emergency department and urgent care center visits for RSV among children <5 years increased and was above levels observed at this time in previous seasons.

In week 13, the percent of emergency department and urgent care center visits for respiratory syncytial virus among children less than five years increased. Levels were above those observed at this time in previous years.

RSV Surveillance

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

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.

Florida’s RSV season is longer than the rest of the nation and has distinct regional patterns. The RSV seasons shown here are based on activity thresholds provided by the Centers for Disease Control and Prevention. Currently, three of Florida's five regions are in RSV surveillance.

To learn more about RSV in Florida, please visit FloridaHealth.gov/RSV.

Northwest Region, October- April (currently in season): Escambia, Santa Rosa, Okaloosa, Bay, Washington, Holmes, Jackson, Calhoun, Gulf, Gadsden, Liberty, Franklin, Wakulla, Leon, Jefferson, Walton North Region, September-March: Madison, Taylor, Hamilton, Suwannee, Lafayette, Dixie, Levy, Alachua, Gilchrist, Union, Bradford, Columbia, Baker, Nassau, Duval, Clay, St. Johns, Putnam Central Region, August-March: Citrus, Marion, Flagler, Volusia, Lake, Sumter, Hernando, Pasco, Pinellas, Hillsborough, Osceola, Brevard, Orange, Seminole  Southwest Region, September-April (currently in season): Polk, Manatee, Hardee, Highlands, Okeechobee, Glades, Charlotte, Desoto, Sarasota, Lee, Hendry, Collier outheast 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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