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
20204019210.150.17123410.32
20204130280.190.18150920.38
20204227260.170.17152500.34
20204322210.130.12166240.25
20204424200.110.09207480.21
20204529230.10.08266420.19
20204630430.080.12347420.21
20204734550.080.14392560.22
20204819360.050.1343590.16
20204931650.070.15427970.22
20205025760.050.18418460.24
20205134800.080.19411840.27
20205234670.080.17387650.26
20205333740.080.17411860.25
20210128950.060.22417980.29
20210219430.040.11386000.16
20210321600.050.16356930.22
20210410440.030.13324460.16
2021051170.040.02242010.07