Influenza Reports - Current

Flu Season Weekly updates on influenza ("flu") in the City of St. Louis.

The following reports detail the weekly percentage of emergency room visits for influenza-like illness, incidence rate (number of new cases) by age group of confirmed influenza cases, and compares the current influenza season to previous influenza seasons.

Updated Information on COVID-19 is available here. 

Current 2020-2021 Flu Season Weekly Reports

Reports are posted every Friday during the influenza season (October to May).

Flu Season Report Week 17: April 18-April 24, 2021
Week 17 Flu Season Report for 2020-2021

Flu Season Report Week 16: April 11-April 17, 2021
Week 16 Flu Season Report for 2020-2021

Flu Season Report Week 15: April 4-April 10, 2021
Week 15 Flu Season Report for 2020-2021

Flu Season Report Week 14: March 28-April 3, 2021
Week 14 Flu Season Report for 2020-2021

Flu Season Report Week 13: March 21-March 27, 2021
Week 13 Flu Season Report for 2020-2021

Flu Season Report Week 12: March 14-March 20, 2021
Week 12 Flu Season Report for 2020-2021

Flu Season Report Week 11: March 7-March 13, 2021
Week 11 Flu Season Report for 2020-2021

Flu Season Report Week 10: February 28 - March 6, 2021
Week 10 Flu Season Report for 2020-2021

Flu Season Report Week 9: February 21- February 27, 2021
Week 9 Flu Season Report for 2020-2021

Flu Season Report Week 8: February 14- February 20, 2021
Week 8 Flu Season Report for 2020-2021

Flu Season Report Week 7: February 7- February 13, 2021
Week 7 Flu Season Report for 2020-2021

Flu Season Report Week 6: January 31 - February 6, 2021
Week 6 Flu Season Report for 2020-2021

Flu Season Report Week 5: January 24 - January 30, 2021
Week 5 Flu Season Report for 2020-2021

Flu Season Report Week 4: January 17 - January 23, 2021
Week 4 Flu Season Report for 2020-2021

Flu Season Report Week 3: January 10 - January 16, 2021
Week 3 Flu Season Report for 2020-2021

Flu Season Report Week 2: January 3, 2021 - January 9, 2021
Week 2 Flu Season Report for 2020-2021

Flu Season Report Week 1: December 27, 2020 - January 2, 2021
Week 1 Flu Season Report for 2020-2021

Flu Season Report Week 52: December 20-December 26, 2020
Week 52 Flu Season Report for 2020-2021

Flu Season Report Week 51: December 13-December 19, 2020
Week 51 Flu Season Report for 2020-2021

Flu Season Report Week 50: December 6-December 12, 2020
Week 50 Flu Season Report for 2020-2021

Flu Season Report Week 49: November 29-December 5, 2020
Week 49 Flu Season Report for 2020-2021

Flu Season Report Week 48: November 22-November 28, 2020
Week 48 Flu Season Report for 2020-2021

Flu Season Report Week 47: November 15-November 21, 2020
Week 47 Flu Season Report for 2020-2021

Flu Season Report Week 46: November 8-November 14, 2020
Week 46 Flu Season Report for 2020-2021

Flu Season Report Week 45: November 1-November 7, 2020
Week 45 Flu Season Report for 2020-2021

Flu Season Report Week 44: October 25-October 31, 2020
Week 44 Flu Season Report for 2020-2021

Flu Season Report Week 43: October 18-October 24, 2020
Week 43 Flu Season Report for 2020-2021

Flu Season Report Week 42: October 11-October 17, 2020
Week 42 Flu Season Report for 2020-2021

Flu Season Report Week 41: October 4-October 10, 2020
Week 41 Flu Season Report for 2020-2021

Flu Season Report Week 40: September 27-October 3, 2020
Week 40 Flu Season Report for 2020-2021

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