Purpose
The infographic serves as an engaging visual tool that captures attention and encourages viewers to learn more about the yearly lab work on flu viruses that CDC handles each year.
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Annual CDC Lab Work on Flu Viruses Detected in the United States*
4,200,000: More than 4.2 million patient specimens tested in clinical labs participating in CDC domestic influenza surveillance
195,000: More than 195,000 specimens tested in 90 state/local public health labs
8,800: CDC conducts full genetic sequencing on around 8,800 flu viruses in the US each year
1,600: CDC tests more than 1,600 flu viruses to determine their immune properties
70: CDC prepares more than 70 flu viruses for possible use in vaccine production
*Numbers represent average annual data as reported to CDC's Influenza Division during FY2023 – FY2025