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
2018433401011.590.47213692.06
201844389991.740.44223522.18
201845543982.320.41233992.73
2018466681022.730.41243813.15
201847893733.630.29245983.92
2018489981053.540.37281463.91
20184916601505.730.51289236.25
20185032401919.820.573299010.4
201851528618513.820.483824214.3
201852684223515.840.544318416.38
201901523414111.840.314418312.16
201902506521312.230.514140612.74
201903665218015.910.434180616.34
201904829324118.870.544393919.42
2019051060227721.950.574829222.52
2019061305740724.350.755361525.11
2019071324650025.070.945282926.01
2019081361846125.380.855364626.24
2019091336242925.280.815283726.1
2019101314842624.830.85293325.64
2019111333655625.111.045309226.16
2019121030960521.251.244849422.5
201913765558717.961.374260319.34
201914488158313.361.593652814.95
201915319655510.141.763151311.9
20191618915096.771.82279098.59
20191710274074.171.65245845.83
2019186343283.161.63200504.79
2019194042742.291.55176403.84
2019203332681.961.58169423.54
2019212752561.761.64155883.4
2019222122261.481.57143053.06
2019231442061.141.63125702.78
2019241291341.131.18113542.31
201925109901.040.86104211.9
20192693951.021.0491022.06
201927128851.460.9787462.43
201928101811.120.989622.03
201929106801.280.9782452.25
201930103851.31.0878652.39
201931103841.331.0877432.41
20193277850.981.0878172.07
20193370910.931.2175132.14
201934821081.221.6167062.83