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
20204019210.150.17122000.32
20204130280.20.18149240.38
20204227260.170.17150580.35
20204321210.120.12166100.25
20204424200.110.09205600.21
20204531250.110.09262920.21
20204630430.080.12341970.21
20204734540.080.13387420.22
20204819360.050.1339640.16
20204931650.070.15424000.22
20205025760.060.18414770.24
20205134800.080.19407900.27
20205234670.080.17384820.26
20205334730.080.18401340.26
20210128950.060.21447790.27
20210224470.050.11416690.17
20210321620.050.15389010.21
20210412480.030.13363480.16
20210521520.050.14364470.2
20210610350.020.1339930.13
20210719220.050.06323440.12
20210817240.040.07342580.11
20210914170.040.04341010.09
20211015210.040.06341330.1
20211126190.070.05346130.13
20211213170.030.04357110.08
2021131390.040.02318460.06
20211410140.030.04314580.07
2021158120.020.03301940.06
20211611150.030.04305360.08
2021171690.050.02312140.08
20211810150.030.05298510.08
20211916110.050.03286990.09
20212023190.080.06280380.14
20212114210.050.08241930.14
2021226130.020.05217440.08
2021237160.030.07200560.11