Influenza Weekly Reports

 

To see how this year's influenza season has progressed, please click on the MMWR Week number that corresponds with the week's beginning and end date you are interested in seeing. Each report is progressive and includes data starting from the beginning of this flu season.

 

ALL DATA ARE PRELIMINARY AND SUBJECT TO CHANGE.

 

Year

 

MMWR

Week

 

Week

Beginning

 

Week

Ending

 

Influenza Activity

Classification*

 

2021 23 June 6 June 12 Sporadic
2021 22 May 30 June 5 Sporadic
2021 21 May 23 May 29 Sporadic
2021 20 May 16 May 22 Sporadic
2021 19 May 9 May 15 Sporadic
2021 18 May 2 May 8 Sporadic
2021 17 April 25 May 1 Sporadic
2021 16 April 18 April 24 Sporadic
2021 15 April 11 April 17 Sporadic
2021 14 April 4 April 10 Sporadic
2021 13 March 28 April 3 Sporadic
2021 12 March 21 March 27 Sporadic
2021 11 March 14 March 20 Sporadic
2021 10 March 7 March 13 Sporadic
2021 9 February 28 March 6 Sporadic
2021 8 February 21 February 27 Sporadic
2021 7 February 14 February 20 Sporadic
2021 6 February 7 February 13 Sporadic
2021 5 January 31 February 6 Sporadic
2021 4 January 24 January 30 Sporadic
2021 3 January 17 January 23 Sporadic
2021 2 January 10 January 16 Sporadic
2021 1 January 3 January 9 Sporadic
2020 53 December 27 January 2 Sporadic
2020 52 December 20 December 26 Sporadic
2020 51 December 13 December 19 Sporadic
2020 50 December 6   December 12  Sporadic
2020 49 November 29 December 5  Sporadic

 

 

 *Influenza Activity Classification-Geographic spread of influenza activity is reported as:

Geographic Activity Classification


This page last updated 6/17/2021.