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	138934	14.9	405586	12.1	653149	4.5	377962	2.9	563192	2.3
202552	156133	19.9	366649	15.1	609454	6.7	345052	4.7	521246	4.3
202553	143154	18.3	332152	10.4	649091	6.4	366312	4.9	555220	4.9
202601	121746	13.6	368866	7.7	695815	4.9	404503	3.8	601785	3.4
202602	117441	12.4	367672	7.4	654619	3.7	381402	2.8	561292	2.2
202603	118416	12.4	351306	8.0	608802	3.6	351622	2.5	523329	1.9
202604	112578	12.1	334809	8.1	599976	3.6	346837	2.4	503031	1.8
202605	117237	11.5	366516	8.1	628787	3.6	368139	2.3	537166	1.7
202606	124199	11.7	381519	8.5	644857	3.6	381645	2.4	562910	1.7
202607	128108	11.6	376756	8.4	643000	3.5	372895	2.2	552149	1.6
202608	121715	10.2	375125	7.2	643423	3.2	376928	2.0	556033	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	642022	2.4	374737	1.4	557916	0.9
202612	122334	8.1	381219	4.9	656495	2.2	380308	1.3	572855	0.9
202613	117969	7.6	358280	4.4	635375	2.1	368702	1.2	554731	0.8
202614	115492	6.9	351733	3.5	635072	1.9	370920	1.1	557682	0.8
202615	115285	6.1	373968	3.0	650241	1.6	381508	1.0	578384	0.7
202616	112235	5.9	369860	2.9	641171	1.5	373965	0.9	565941	0.6
202617	110763	5.7	370097	2.8	636672	1.4	368390	0.9	559470	0.6
202618	110966	5.5	371207	2.8	641459	1.4	374169	0.9	569806	0.6
202619	111004	5.5	367198	2.6	642833	1.4	376263	0.9	574010	0.6
202620	110579	5.1	353888	2.3	647582	1.3	379748	0.8	580008	0.6
202621	110868	5.1	336563	2.1	633973	1.2	368764	0.8	559798	0.6
202622	104498	4.8	334428	1.8	645104	1.1	378750	0.7	577692	0.5
202623	101800	4.4	326099	1.5	643996	1.0	380207	0.6	575814	0.5
202624	99833	4.2	321239	1.4	639437	0.9	374875	0.6	571420	0.4
202625	95232	3.8	313974	1.3	638794	0.8	372177	0.6	564020	0.4
202626	93058	3.5	303907	1.2	611872	0.8	353723	0.5	537533	0.4
202627	95494	3.2	330772	1.1	667264	0.7	381676	0.5	573413	0.4
202628	92330	3.1	324059	1.1	656106	0.7	376406	0.5	565797	0.4
202629	91051	3.0	320987	1.0	650217	0.7	372930	0.5	560735	0.4
202630	90334	3.0	324233	1.0	643381	0.7	370213	0.5	556192	0.4
202631	90371	3.0	327643	1.1	639941	0.7	368003	0.5	554229	0.3
202632	91267	3.2	340060	1.2	650469	0.7	375258	0.5	560752	0.3
202633	93574	3.8	348378	1.7	646059	0.8	371348	0.6	554712	0.4
202634	100934	4.2	369862	2.1	661966	1.0	379391	0.7	568144	0.4
202635	101503	4.6	370194	2.3	661004	1.2	378759	0.7	573159	0.5
202636	104329	4.8	365761	2.2	648151	1.2	367265	0.9	549425	0.6
202637	102793	5.2	374461	2.3	653885	1.3	373995	1.0	561644	0.7
202638	105749	5.4	373778	2.5	652138	1.4	372066	1.1	564196	0.8
202639	108423	5.9	373973	2.6	648729	1.5	372985	1.2	570461	0.9