U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet):
Percentage of Visits for ILI by Age Group Reported by A Subset of ILINet Providers
2025-2026 Season

	0-4 years		5-24 years		25-49 years		50-64 years		65+ years
Week	Total Visits	ILI	Total Visits	ILI	Total Visits	ILI	Total Visits	ILI	Total Visits	ILI
202540	113310	5.3	381830	2.3	655569	1.2	380781	0.8	547100	0.6
202541	114158	5.3	371458	2.3	639161	1.2	375060	0.8	541187	0.6
202542	113500	5.7	364383	2.4	632736	1.3	372169	0.8	540864	0.6
202543	114254	5.8	368541	2.5	633071	1.3	371048	0.9	542370	0.6
202544	112239	6.3	357388	2.8	613423	1.4	360701	0.9	530122	0.6
202545	120374	6.8	380656	3.4	631714	1.6	367481	1.0	537322	0.7
202546	119639	7.0	368959	3.7	629041	1.7	366709	1.1	536468	0.8
202547	120889	7.8	376041	4.3	637349	1.9	373123	1.2	547862	0.9
202548	117924	9.3	311855	5.3	558331	2.2	319696	1.5	478208	1.1
202549	119319	9.4	354508	5.3	636415	2.7	370770	1.8	547472	1.3
202550	122014	11.3	372616	7.8	633683	3.1	369750	2.0	547368	1.6
202551	138477	14.9	405946	12.1	651042	4.5	377598	2.9	556633	2.3
202552	156152	19.9	367686	15.0	609477	6.7	346323	4.7	518923	4.3
202553	143154	18.3	332152	10.4	649091	6.4	366312	4.9	555219	4.9
202601	121745	13.6	368866	7.7	695815	4.9	404502	3.8	601785	3.4
202602	117441	12.4	367672	7.4	654619	3.7	381402	2.8	561291	2.2
202603	118328	12.4	350886	8.1	607787	3.6	351028	2.5	520147	1.9
202604	112578	12.1	334809	8.1	599975	3.6	346836	2.4	503031	1.8
202605	117237	11.5	366516	8.1	628787	3.6	368139	2.3	537165	1.7
202606	124199	11.7	381519	8.5	644857	3.6	381644	2.4	562910	1.7
202607	128106	11.6	376728	8.4	642926	3.5	372845	2.2	552105	1.6
202608	121591	10.2	374847	7.2	642894	3.2	376453	2.0	555555	1.4
202609	125881	10.3	391596	7.3	654983	3.0	384595	1.8	567355	1.2
202610	124716	9.5	386503	6.5	652072	2.6	383098	1.6	571763	1.1
202611	120418	8.7	365106	5.6	642021	2.4	374737	1.4	557915	0.9
202612	122095	8.2	380529	4.9	655267	2.2	379269	1.3	569124	0.9
202613	117968	7.6	358281	4.4	635375	2.1	368702	1.2	554731	0.8
202614	115452	6.9	351624	3.5	634802	1.9	370651	1.1	557363	0.8
202615	115285	6.1	373968	3.0	650241	1.6	381508	1.0	578384	0.7
202616	112120	5.9	369647	2.9	640749	1.5	373571	0.9	565394	0.6
202617	110569	5.7	369311	2.8	635111	1.4	367019	0.9	554694	0.6
202618	110814	5.6	370658	2.8	640423	1.4	373374	0.9	565959	0.6
202619	110769	5.5	366722	2.6	642151	1.4	375856	0.9	570835	0.6
202620	110400	5.1	353407	2.3	646753	1.3	379066	0.8	577002	0.6
202621	110889	5.1	336677	2.1	634196	1.2	368821	0.8	558156	0.6
202622	104350	4.8	333997	1.8	644037	1.1	377798	0.7	573594	0.5
202623	101725	4.4	325755	1.5	643541	1.0	379560	0.7	572710	0.5
202624	99825	4.2	320847	1.4	638703	0.9	374395	0.6	568422	0.4
202625	95174	3.8	313659	1.3	638238	0.8	371560	0.6	561409	0.4
202626	93053	3.5	303901	1.2	611832	0.8	353701	0.5	537513	0.4
202627	95094	3.3	329838	1.1	666067	0.7	380564	0.5	569341	0.4
202628	91492	3.1	313510	1.0	613926	0.6	344580	0.4	517137	0.3