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
20205025760.060.18413920.24
20205134800.080.19407330.27
20205234670.080.17384240.26
20205333730.070.17413330.25
20210128950.060.22421190.29
20210221470.050.12390690.17
20210321620.050.17364330.22
20210412470.030.13338180.17
20210520520.050.15339490.21
2021067330.020.1313590.12
20210715210.050.07296770.12
20210816160.050.05316200.1
20210911100.060.05167990.12