RSV Surveillance - Florida Department of Health

Florida’s respiratory season includes influenza, RSV, and other common respiratory diseases and typically runs from October through May. These periods coincide with changes in activity above what we normally observe. In Florida, respiratory activity usually increases around week 40 (late September/early October) and returns to baseline activity around week 20 (May).

Respiratory Syncytial Virus

Learn more about RSV, along with additional information about respiratory viruses.

The season is marked using standardized reporting weeks defined by the Centers for Disease Control and Prevention, allowing for consistent year-over-year tracking and early detection of rising trends. Florida conducts surveillance year-round because respiratory activity typically starts earlier and lasts longer compared to the rest of the nation. However, Florida’s respiratory season onset, severity, and duration cannot be predicted by disease and can vary by region across the state.

Surveillance is conducted to support clinical decision-making for prophylaxis for those at high risk of illness. To better contextualize the data presented in these reports, we have grouped them by season rather than calendar year.

RSV Surveillance Reports

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2026/2027 Weekly Reports

Week 43 – October 25-31

Week 42 – October 18-24

Week 41 – October 11-17
Week 40 – October 4-10

2025/2026 Weekly Reports

Week 39 – September 27 – October 3
Week 38 – September 20-26
Week 37 – September 13-19
Week 36 – September 6-12
Week 35 – August 30 – September 5
Week 34 – August 23-29
Week 33 – August 16-22
Week 32 – August 9-15
Week 31 – August 2-8
Week 30 – July 26 – August 1
Week 29 – July 19-25
Week 28 – July 12-18
Week 27 – July 5-11
Week 26 – June 28 – July 4
Week 25 – June 21-27
Week 24 – June 14-20

Week 23 – June 7-13
Week 22 – May 31 – June 6
Week 21 – May 24-30
Week 20 – May 17-23
Week 19 – May 10-16
Week 18 – May 3-9
Week 17 – April 26 – May 2
Week 16 – April 19-25
Week 15 – April 12-18
Week 14 – April 5-11
Week 13 – March 29 – April 4
Week 12 – March 22-28
Week 11 – March 15-21
Week 10 – March 8-14
Week 9 – March 1-7
Week 8 – February 22-28
Week 7 – February 15-21
Week 6 – February 8-14
Week 5 – February 1-7
Week 4 – January 25-31

Week 3 – January 18-24
Week 2 – January 11-17
Week 1 – January 4-10
Week 53 – December 28 – January 3
Week 52 – December 21 – 27
Week 51 – December 14 – 20
Week 50 – December 7 – 13
Week 49 – November 30 – December 6
Week 48 – November 23 – 29
Week 47– November 16 – 22
Week 46 – November 9 – 15
Week 45 – November 2 – 8
Week 44 – October 26 – November 1
Week 43 – October 19 – 25
Week 42 – October 12 – 18
Week 41 – October 5 – 11
Week 40 – September 28 – October 4

2024/2025 Weekly Reports

Week 39 – September 21- 27
Week 38 – September 14 – 20
Week 37 – September 7 – 13
Week 36 – August 31 – September 6
Week 35 – August 24 – 30
Week 34 – August 17 – 23
Week 33 – August 10 – 16
Week 32 – August 3 – 9
Week 31 – July 27 – August 2
Week 30 – July 20 – 26
Week 29 – July 13 – 19
Week 28 – July 6-12
Week 27 – June 29 – July 5
Week 26 – June 22-28
Week 25 – June 15-21

Week 24 – June 8-14
Week 23 – June 1-7
Week 22 – May 25-31
Week 21 – May 18-24
Week 20 – May 11-17
Week 19 – May 4-10
Week 18 – April 27 – May 3
Week 17 – April 20-26
Week 15 – April 6-12
Week 16 – April 13-19
Week 14 – March 30 – April 5
Week 13 – March 23-29
Week 12 – March 16-22
Week 11 – March 9-15
Week 10 – March 2-8
Week 9 – February 23 – March 1
Week 8 – February 16 – 22
Week 7 – February 9 – 15
Week 6 – February 2 – 8

Week 5 – January 26 – February 1
Week 4 – January 19 – 25
Week 3 – January 12 – 18
Week 2 – January 5 – 11
Week 1 – December 29 – January 4
Week 52 – December 22 – 28
Week 51 – December 15 – 21
Week 50 – December 8 – 14
Week 49 – December 1 – 7
Week 48 – November 24 – 30
Week 47 – November 17 – 23
Week 46 – November 10 – 16
Week 45 – November 3 – 9
Week 44 – October 27 – November 2
Week 43 – October 20 – 26
Week 42 – October 13 – 19
Week 41 – October 6 – 12
Week 40 – September 29 – October 5

2023/2024 Weekly Reports

Week 39 – September 22 – 28
Week 38 – September 15 – 21
Week 37 – September 7 – 14
Week 36 – September 1 – 7
Week 35 – August 25 – 31
Week 34 – August 18 – 24
Week 33 – August 11 – 17
Week 32 – August 4 – 10
Week 31 – July 28 – August 3
Week 30 – July 21 – 27
Week 29 – July 14 – 20
Week 28 – July 7 – 13
Week 27 – June 30 – July 6
Week 26 – June 23 – 29
Week 25 – June 16 – 22
Week 24 – June 9 – 15
Week 23 – June 2 – 8
Week 22 – May 25 – June 1

Week 21 – May 18 – 24
Week 20 – May 11 – 17
Week 19 – May 5 – 11
Week 18 – April 28 – May 4
Week 17 – April 21 – 27
Week 16 – April 14 – 20
Week 15 – April 7 – 13
Week 14 – March 31 – April 6
Week 13 – March 24 – 30
Week 12 – March 17 – 23
Week 11 – March 10 – 16
Week 10 – March 3 – 9
Week 9 – February 25 – March 2
Week 8 – February 18 – 24
Week 7 – February 11 – 17
Week 6 – February 4 – 10
Week 5 – January 28 – February
Week 4 – January 21 – 27

Week 3 – January 14 – 20
Week 2 – January 7 – 13
Week 1 – December 31 – January 6
Week 52 – December 24 – 30
Week 51 – December 17 – 23
Week 50 – December 10 – 16
Week 49 – December 3 – 9
Week 48 – November 25 – December 2
Week 47 – November 18 – 24
Week 46 – November 11 – 17
Week 45 – November 5 – 11
Week 44 – October 29 – November 4
Week 43 – October 22 – 28
Week 42 – October 15 – 21
Week 41 – October 8 – 14
Week 40 – October 1 – 7

2022/2023 Weekly Reports

2022 Weekly Reports