Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2019-2020 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
2019401361240.680.62198511.3
2019411461810.660.81221131.47
2019421721870.740.8231311.55
2019432013540.811.43246302.25
2019442215560.862.18254173.05
20194541410751.433.72288425.16
20194653515891.75.05314396.75
20194790325812.477.07364979.54
201948107927933.047.893539810.93
201949142634613.48.254192911.65
201950215850974.811.344491116.15
201951369785796.7815.745448022.53
2019525980112649.3417.596402426.93
202001564596648.6614.826517723.48
2020026109792810.0613.056071723.11
2020037712802012.7813.296031626.08
2020049478876414.6913.586450228.28
20200512102967116.7513.397222430.14
20200612960878718.0312.227186830.25
20200713372718019.310.366925729.67
20200812714575519.498.826521228.32
20200911713436318.766.986242725.75
20201011050337817.225.266414922.49
2020119077269012.193.617441615.81
202012413113525.651.84730907.5
2020137582801.70.63443762.33
2020141951220.640.4303291.04
20201575460.380.23195370.61
20201658320.40.22144150.62
2020172080.150.06128010.21
2020181980.180.07102480.26
20201914150.150.1688750.32
20202013100.160.1277990.29
202021880.10.175060.21
202022730.110.0460430.16
2020239120.140.1961290.34
202024870.140.1256700.26
2020251270.230.1351690.36
202026970.160.1256040.28
202027640.10.0756040.17
202028620.10.0354870.14
2020291430.340.0741080.41