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	113	1.47	0.73	15438	2.2
201741	245	95	1.49	0.57	16440	2.06
201742	278	110	1.57	0.62	17638	2.19
201743	332	130	1.86	0.72	17816	2.59
201744	503	223	2.51	1.11	19973	3.63
201745	681	242	3.21	1.14	21168	4.36
201746	933	312	3.95	1.32	23571	5.28
201747	1318	332	5.67	1.43	23210	7.1
201748	1508	412	5.68	1.55	26524	7.23
201749	2176	511	7.83	1.83	27786	9.67
201750	4416	794	12.73	2.28	34676	15.02
201751	8733	1633	18.96	3.54	46043	22.51
201752	11390	1996	21.46	3.76	53071	25.22
201801	12565	2431	20.91	4.04	60082	24.95
201802	14530	3077	21.92	4.64	66281	26.56
201803	13859	3616	21.19	5.53	65378	26.72
201804	15841	5190	20.16	6.6	78555	26.77
201805	14355	6385	18.03	8.02	79584	26.06
201806	13359	7554	16.9	9.56	79011	26.46
201807	10842	7785	14.86	10.67	72929	25.54
201808	6782	6052	11.67	10.42	58080	22.09
201809	4157	4227	9.06	9.21	45848	18.28
201810	2747	3287	7.1	8.49	38679	15.6
201811	2229	3163	6.43	9.13	34643	15.56
201812	1852	2795	5.98	9.03	30924	15.02
201813	1589	2669	5.6	9.41	28357	15.01
201814	1018	2093	4.08	8.4	24913	12.48
201815	817	1777	3.53	7.69	23102	11.22
201816	524	1251	2.76	6.6	18953	9.36
201817	319	629	2.49	4.91	12794	7.4