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
201740	227	114	1.47	0.73	15410	2.21
201741	247	98	1.49	0.59	16471	2.09
201742	274	109	1.55	0.61	17640	2.17
201743	331	130	1.85	0.72	17826	2.58
201744	504	222	2.51	1.1	20004	3.62
201745	684	247	3.21	1.16	21257	4.37
201746	937	319	3.94	1.34	23775	5.28
201747	1316	339	5.6	1.44	23479	7.04
201748	1513	426	5.63	1.58	26828	7.22
201749	2181	521	7.76	1.85	28083	9.62
201750	4457	815	12.69	2.32	35100	15.01
201751	8823	1665	18.91	3.56	46643	22.48
201752	11486	1998	21.37	3.71	53748	25.08
201801	12672	2445	20.85	4.02	60775	24.87
201802	14685	3105	21.87	4.62	67144	26.49
201803	13980	3652	21.18	5.53	65981	26.72
201804	16014	5226	20.22	6.6	79174	26.82
201805	14504	6399	18.09	7.98	80152	26.07
201806	13483	7564	16.97	9.52	79438	26.49
201807	10926	7814	14.9	10.65	73321	25.55
201808	6879	6088	11.71	10.36	58718	22.08
201809	4190	4247	9.06	9.18	46245	18.24
201810	2777	3332	7.05	8.46	39368	15.51
201811	2274	3208	6.43	9.08	35328	15.51
201812	1906	2855	6.04	9.05	31518	15.1
201813	1636	2748	5.61	9.43	29115	15.05
201814	1065	2169	4.13	8.42	25740	12.56
201815	840	1831	3.51	7.66	23875	11.18
201816	550	1334	2.72	6.61	20166	9.34
201817	444	1030	2.29	5.33	19321	7.62
201818	335	697	2.01	4.19	16597	6.21
201819	186	430	1.28	2.98	14428	4.26
201820	169	228	1.32	1.78	12749	3.11
201821	114	157	0.99	1.36	11509	2.35
201822	76	86	0.71	0.81	10585	1.53
201823	71	79	0.7	0.78	10071	1.48
201824	49	65	0.55	0.73	8793	1.29
201825	46	38	0.55	0.45	8307	1.01
201826	56	29	0.73	0.38	7581	1.12
201827	42	23	0.67	0.36	6224	1.04
201828	46	14	0.71	0.21	6418	0.93
201829	50	15	0.79	0.23	6290	1.03
201830	25	8	0.44	0.14	5628	0.58
201831	6	6	0.13	0.13	4302	0.27