CDC Yearly Lab Work on Flu Viruses Infographic
![yearly-lab-work-infograph-1145px CDC Yearly Lab Work on Flu Viruses](/congress116th/20210118170447im_/https://www.cdc.gov/flu/images/freeresources/graphics/yearly-lab-work-infograph-1145px.jpg)
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CDC Yearly Lab Work on Flu Viruses
1,000,000: More than 1 million patient specimens are tested in clinical labs participating in CDC domestic disease surveillance.*
100,000: About 100,000 specimens are tested in 93 state/local public health labs.
7,000: CDC conducts full genetic sequencing on about 7,000 flu viruses each year.
2,000: CDC tests about 2,000 flu viruses to determine their immune properties.
50: CDC prepares as many as 50 viruses for possible use in vaccine production.
*2017-2018 influenza data as reported by CDC’s Influenza Division, National Center for Immunization and Respiratory Diseases (NCIRD)
Page last reviewed: November 21, 2019