Lab Work on Flu Viruses

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CDC Yearly Lab Work on Flu Viruses

1,000,000: More than 1 million patient specimens are testing 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 flu genetic sequencing on about 7,000 flu viruses each year.

2,000: CDC test about 2,000 flu viruses to determine their immune properties.

50: CDC prepares as many as 50 viruses for possible use in vaccine production.

*Influenza data current as of 2020-2021, as reported by CDC’s Influenza Division, National Center for Immunization and Respiratory Diseases (NCIRD)