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Respiratory Syncytial Virus (RSV) in Florida

Florida Health

Disease Control

Respiratory Syncytial Virus Surveillance

Activity Summary

Weeks 35-36 ( August 23 - September 5, 2020 )

In weeks 35-36, RSV activity in children <5 years old has stayed stable since week 30. Levels were below those seen at this time in past years.

No new outbreaks of RSV were reported in weeks 35-36.

Currently, two of Florida’s five regions are in RSV season.

In weeks 35-36, the percent of emergency department and urgent care center visits for RSV among children <5 years has stayed stable since week 30. RSV activity in children <5 years was below levels observed at this time in previous years.

RSV activity in children <5 years stayed stable since week 30 and remained below levels observed at this time in previous seasons.

In weeks 35-36, the percent of specimens testing positive for rhinovirus increased and was higher than other respiratory viruses under surveillance. Of note, a significant decrease in the volume of testing has been observed in previous weeks. This figure may change as additional data are received.

RSV Surveillance

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.

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. For more information on RSV surveillance systems used in Florida, please visit

Northwest Region, October- April: Escambia, Santa Rosa, Okaloosa, Bay, Washington, Holmes, Jackson, Calhoun, Gulf, Gadsden, Liberty, Franklin, Wakulla, Leon, Jefferson North Region, September-March (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 (currently in season): Citrus, Marion, Flagler, Volusia, Lake, Sumter, Citrus, 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 Southeast Region, January-December (currently in season): Indian River, St. Lucie, Martin, Palm Beach, Broward, Miami-Dade, Monroe

The figure shows the percent of emergency department and urgent care center visits with discharge diagnoses that include respiratory syncytial virus (RSV) or RSV-associated illness among children <5 years1, as reported in ESSENCE-FL, week 30, 2016 to week 36, 2020.

*Note: This page contains materials in the Portable Document Format (PDF). The free Acrobat Reader may be required to view these files.