Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2020-2021 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
20204019210.150.17121570.32
20204130280.20.18148860.38
20204227260.170.17150050.35
20204321210.120.12165710.25
20204424200.110.09205180.21
20204531250.110.09262380.21
20204630430.080.12341380.21
20204734540.080.13386740.22
20204819360.050.1339060.16
20204931650.070.15423480.22
20205025760.060.18414080.24
20205134800.080.19407360.27
20205234670.080.17384270.26
20205334730.080.18400910.26
20210128950.060.21447250.27
20210224470.050.11416100.17
20210321620.050.16385710.21
20210412480.030.13360090.16
20210521520.050.14361180.2
20210610350.020.1336560.13
20210719220.050.06319690.12
20210817240.050.07338650.12
20210914170.040.05336550.09
20211015210.040.06336990.1
20211126180.070.05341430.12
20211212160.030.04351330.07
20211313100.040.03312480.07
20211412150.040.05296480.09
202115570.020.03225740.05