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	113622	5.2	383157	2.3	657075	1.2	381918	0.8	552438	0.6
202541	114359	5.3	372539	2.3	640607	1.2	376066	0.8	545331	0.6
202542	113667	5.6	365159	2.4	633514	1.3	372886	0.8	544389	0.6
202543	114614	5.8	369528	2.5	634315	1.3	371903	0.9	546208	0.6
202544	112567	6.3	358478	2.8	614948	1.4	361857	0.9	535351	0.6
202545	120665	6.8	381708	3.4	632777	1.6	368374	1.0	541582	0.7
202546	119920	7.0	369950	3.7	630295	1.7	367802	1.1	540781	0.8
202547	121323	7.7	377077	4.3	638946	1.9	374307	1.2	552474	0.9
202548	118000	9.3	312091	5.3	558230	2.2	319717	1.5	479873	1.1
202549	119762	9.4	355554	5.3	638091	2.6	372230	1.8	552900	1.3
202550	122369	11.2	373465	7.8	635092	3.1	370772	2.0	551277	1.6
202551	138801	14.9	407046	12.1	652501	4.5	378859	2.9	561025	2.3
202552	156056	19.9	367760	15.1	608901	6.7	346015	4.7	519719	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	118416	12.4	351306	8.0	608801	3.6	351622	2.5	523329	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	124875	9.5	387105	6.4	653152	2.6	383976	1.6	575641	1.1
202611	120418	8.7	365106	5.6	642021	2.4	374737	1.4	557915	0.9
202612	122335	8.1	381218	4.9	656496	2.2	380307	1.3	572855	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	640751	1.5	373571	0.9	565394	0.6
202617	110751	5.7	370058	2.8	636488	1.4	368197	0.9	559112	0.6
202618	110965	5.5	371207	2.8	641459	1.4	374169	0.9	569805	0.6
202619	111004	5.5	367197	2.6	642832	1.4	376262	0.9	574008	0.6
202620	110579	5.1	353885	2.3	647580	1.3	379746	0.8	580006	0.6
202621	110868	5.1	336562	2.1	633966	1.2	368763	0.8	559792	0.6
202622	104496	4.8	334424	1.8	645094	1.1	378748	0.7	577688	0.5
202623	101800	4.4	326093	1.5	643986	1.0	380201	0.6	575798	0.5
202624	99832	4.2	321234	1.4	639417	0.9	374869	0.6	571408	0.4
202625	95220	3.8	313924	1.3	638693	0.8	372093	0.6	563949	0.4
202626	93055	3.5	303902	1.2	611848	0.8	353707	0.5	537521	0.4
202627	95492	3.2	330769	1.1	667240	0.7	381666	0.5	573394	0.4
202628	92330	3.1	324048	1.1	656071	0.7	376393	0.5	565771	0.4
202629	91040	3.0	320856	1.0	650007	0.7	372852	0.5	560666	0.4
202630	88359	2.9	320135	1.0	642233	0.7	369609	0.5	555355	0.4