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
20204019210.150.16123580.32
20204130280.190.18151160.38
20204227260.170.17152690.34
20204322210.130.12167300.25
20204424200.110.09208820.21
20204531250.110.09267680.2
20204630430.080.12348170.2
20204734550.080.13393830.22
20204819360.050.1344910.15
20204931650.070.15429250.22
20205025760.050.18419510.24
20205134800.080.19412680.27
20205234670.080.17388650.25
20205333740.070.17417510.25
20210128950.060.22425590.28
20210221470.050.11394570.17
20210321620.050.16368030.22
20210412470.030.13341250.17
20210520520.050.15342610.21
2021067330.020.1316250.12
20210715210.050.07299570.12
20210816160.070.07222420.14