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
2020137592801.690.62447542.32
2020141961220.630.39308381.03
20201575460.380.23195720.61
20201658320.40.22144430.62
2020172080.150.06128220.21
2020181980.180.07102680.26
20201914150.150.1688910.32
20202014100.170.1278440.3
202021880.10.175230.21
202022730.110.0460540.16
2020239120.140.1961560.34
202024880.140.1456950.28
2020251270.230.1352140.36
202026970.160.1256250.28
202027850.130.0859700.21
202028650.090.0860450.18
20202911120.180.259150.38
202030540.080.0658360.15
202031350.050.0858490.13
202032530.080.0460320.13
202033440.060.0658100.13
202034550.080.0858020.17
202035790.120.1655810.28
202036730.150.0644550.22