Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2021-2022 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
20214038280.070.05491770.13
20214122310.040.06457870.11
20214226380.050.07481730.13
20214398330.190.06513550.25
202144123360.210.06563730.28
202145309360.490.05623420.55
202146684450.940.06721641.01
2021471265391.780.05709361.83
2021482351672.780.07842702.86
2021493840493.970.05966454.02
2021506507616.110.051064456.17
2021516816785.550.061226605.62
20215255981073.970.071406624.05
2022013371642.30.041464082.34
2022022469711.960.051256922.02
20220320577220.071027842.07
2022041635451.950.05837552
2022051523412.330.06652902.39
2022061635382.710.06601212.78
2022071770374.10.08430784.19