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
20205333730.070.17413330.25
20210128950.060.22421200.29
20210221470.050.12390710.17
20210321620.050.17364350.22
20210412480.030.14339550.17
20210521520.060.15340950.21
2021069350.020.11317080.13
20210718220.050.07302880.13
20210817240.050.07338360.12
20210914170.040.05327380.09
20211013150.040.04316790.08
2021111380.050.03235460.08