Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2021-2022 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
20214037280.070.05488770.13
20214122310.040.06455300.11
20214226380.050.07480740.13
20214398330.190.06510300.25
202144123360.210.06560600.28
202145309360.490.05622130.55
202146684450.950.06717891.01
2021471265391.780.05708461.84
2021482335672.780.07838542.86
2021493819493.960.05962374.01
2021506501616.110.051063346.17
2021516872785.60.061226145.66
20215257361084.040.071419194.11
2022013459682.340.041476342.38
2022022517721.980.051266292.04
2022032112722.020.061042542.09
2022041670461.950.05855032
2022051512412.240.06674992.3
2022061791432.810.06635382.88
2022072423593.930.09616534.02
2022082703304.520.05597904.57
2022093437405.790.06593165.86
2022104001516.650.08600976.74
2022114812527.820.08614897.91
2022125220368.110.05642878.17
20221353621148.350.17641658.53
2022146348349.350.05678589.4
2022156727269.860.03681959.9
2022166017528.710.07690148.79
2022175830418.090.05719828.15
2022186366518.510.06747538.58
2022195746637.250.07792127.33
2022204887276.140.03795826.17
2022214710375.810.04810615.85
2022223744464.890.06764294.95
2022232379303.280.04725213.32
2022241541392.310.05666792.36
2022251009321.690.05593951.75
202226656181.390.03470981.43