Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2017-2018 Season
Week Total A Total B Percent Positive A Percent Positive B Total # Tested % Positive
2017402271141.470.73154102.21
201741247981.490.59164712.09
2017422741091.550.61176402.17
2017433311301.850.72178262.58
2017445042222.511.1200043.62
2017456842473.211.16212574.37
2017469373193.941.34237755.28
20174713163395.61.44234797.04
20174815134265.631.58268287.22
20174921815217.761.85280839.62
201750445781512.692.323510015.01
2017518823166518.913.564664322.48
20175211486199821.373.715374825.08
20180112752245620.884.026107224.9
20180214778311721.894.616749426.51
20180314079365621.225.516632426.73
20180416154524220.276.577967426.85
20180514594640818.127.958052526.08
20180613560757316.999.497978726.48
20180710990782814.9210.637361225.56
2018086925610711.7410.355898522.09
201809422442719.079.174653018.25
201810280033547.068.463960815.53
201811229732276.469.083552315.55
201812192328706.049.023179815.07
201813164927615.639.432926315.07
201814108721824.198.422590512.61
20181585418483.557.692401011.25
20181655513552.736.68202809.41
20181745210412.325.35194337.68
2018183427062.044.22167016.27
2018191894411.33.04144984.34
2018201722351.331.82128793.16
2018211141580.981.36115802.34
20182276870.710.81106551.52
20182373790.720.77101371.49
20182449650.550.7388371.29
20182547380.560.4583531.01
20182656290.730.3876221.11
20182742230.630.3466050.98
20182846140.680.267440.88
20182951150.760.2266800.98
20183046180.70.2765690.97
20183143160.710.2660380.97
20183241200.620.365950.92
20183332160.50.2563120.76
20183422140.380.2456640.63