Weekly US Influenza Surveillance Report: Key Updates for Week 23, ending June 7, 2025
CDC
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June 13 2025
The results of tests performed by clinical laboratories nationwide are summarized below. Data from clinical laboratories (the percentage of specimens tested that are positive for influenza) are used to monitor whether influenza activity is increasing or decreasing. Nationally, during Week 23, the percentage of respiratory specimens testing positive for influenza virus in clinical laboratories was 1.7%.
