Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2018-2019 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
201840218711.310.42165281.74
201841223831.230.46180351.69
201842311891.540.44201901.98
2018433401011.580.47214092.05
201844390991.730.44224472.17
201845546982.320.41235152.73
2018466681042.720.42244753.15
201847897763.620.3247263.93
20184810011063.530.37282833.91
20184916601525.710.52290286.24
20185032421949.780.583311710.37
201851528819213.780.53837014.28
201852684924015.80.554332516.36
201901523815211.80.344438312.14
201902507521812.210.524154512.74
201903666318615.870.444195916.32
201904830924318.840.554410119.39
2019051065928921.960.594853622.55
2019061312242924.340.795389225.14
2019071331350925.060.955312326.01
2019081368047525.380.885390026.26
2019091341643625.270.825308826.09
2019101318843424.810.815315325.62
2019111336455925.081.045328326.13
2019121032261421.211.264865922.47
201913766459317.921.384275019.31
201914488358813.331.63663114.93
201915320155910.121.763160811.89
20191618915116.771.82279318.59
20191710284084.171.65246385.82
2019186343323.151.65201154.8
2019194042752.281.55176873.83
2019203332681.961.57169783.53
2019212762581.761.65156303.41
2019222122291.471.59143413.07
2019231442071.141.64126012.78
2019241291341.131.17113842.31
201925109901.040.86104501.9
20192693961.011.0591262.07
201927128851.460.9787612.43
201928102811.130.989882.03
201929105801.260.9682722.23
201930104851.311.0778912.39
201931104851.331.0878052.42
20193279860.981.0780102.05
20193378930.941.1282412.07
201934941161.061.3188072.38
2019351402201.352.12103393.48
2019361332281.151.98114943.14
2019371501801.151.38129932.53
2019381532351.111.71136662.83
2019391102890.922.43118553.36