Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2025-2026 Season

Week	Total A	Total B	Percent Positive A	Percent Positive B	Total # Tested	% Positive
202540	243	46	0.43	0.08	55704	0.51
202541	243	44	0.42	0.07	57031	0.5
202542	303	51	0.54	0.09	55540	0.63
202543	390	47	0.68	0.08	56778	0.76
202544	539	62	0.96	0.11	56099	1.07
202545	1039	120	1.67	0.19	61988	1.86
202546	1863	180	2.95	0.28	63049	3.24
202547	3322	286	5.01	0.43	66226	5.44
202548	4745	293	7.51	0.46	63138	7.97
202549	6198	335	8.47	0.45	73147	8.93
202550	12125	600	14.62	0.72	82899	15.35
202551	25604	1380	24.15	1.3	106008	25.45
202552	35871	2071	29.85	1.72	120165	31.57
202553	27104	1674	23.1	1.42	117308	24.53
202601	18544	1409	17.1	1.29	108411	18.4
202602	14652	1504	15.27	1.56	95892	16.84
202603	13394	2422	14.57	2.63	91921	17.2
202604	11836	3236	13.43	3.67	88092	17.1
202605	11370	5111	12.03	5.4	94482	17.44
202606	9807	7649	10.18	7.94	96250	18.13
202607	7555	9845	7.73	10.08	97612	17.82
202608	5049	9516	5.37	10.12	93994	15.49
202609	3644	10017	4.05	11.15	89833	15.2
202610	2297	9144	2.75	10.95	83446	13.71
202611	1452	6914	1.92	9.16	75410	11.09
202612	1083	5618	1.54	8.01	70086	9.56
202613	766	4066	1.23	6.56	61959	7.79
202614	519	3027	0.87	5.1	59323	5.97
202615	441	2189	0.76	3.81	57362	4.58
202616	332	1476	0.64	2.84	51810	3.48
202617	229	1134	0.51	2.54	44618	3.05