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
20204322210.130.12166610.25
20204424200.110.09207880.21
20204529230.10.08266800.19
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
20210321620.050.16366430.22
20210412470.030.13339790.17
20210520520.050.15341260.21
2021067330.020.1313040.12
20210713150.060.08187400.14