{ "domain": "www.cdc.gov", "week": "2026-W26", "generatedAt": "2026-07-13T01:20:05.051Z", "reports": [ { "instance_id": "VS-e1fd6438", "pattern_id": "VS-179ad9b3", "a11y_pattern_fingerprint": "ca493a7844442e3b2cf88a67a7f8658d7d56d4158aa9ebd9a8c999d8335a9543", "a11y_pattern_display_id": "A11Y-PAT-CA493A784444", "a11y_occurrence_fingerprint": "f1f14554c9540a696a70d7a60cbb3c50de8afddaf62445aa7ebdc09169edaff2", "a11y_occurrence_display_id": "A11Y-OCC-F1F14554C954", "url": "https://www.cdc.gov/laboratory/drugservice/index.html", "xpath": "", "html_snippet": null, "wcag_sc": "2.5.8", "wcag_name": "Target Size (Minimum)", "wcag_level": "AA", "wcag_version": "2.2", "wcag_category": "WCAG 2.2 AA", "evidence_status": "automated-indicator", "rule_id": "sia-r113", "rule_label": "Target size is at least 24×24 CSS pixels or has spacing (Minimum)", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r113", "severity": "Moderate", "frequency": { "instances": 2466, "pages_affected": 270, "total_pages_scanned": 1667 }, "likely_source": "template", "summary": "Target size is at least 24×24 CSS pixels or has spacing (Minimum) (WCAG 2.5.8)", "description": "Target size is at least 24×24 CSS pixels or has spacing (Minimum). Detected by Siteimprove Alfa rule sia-r113 on 270 of 1667 scanned pages (2466 instances).", "examples": [ { "url": "https://www.cdc.gov/laboratory/drugservice/index.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/laboratory/drugservice/index.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/laboratory/drugservice/index.html", "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5909a5.htm" ], "affected_pages": [ "https://www.cdc.gov/laboratory/drugservice/index.html", "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5909a5.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "https://www.cdc.gov/nhsn/dialysis/dialysis-event.html", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6033a3.htm?s_cid=mm6033a3_w", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000800.htm", "https://www.cdc.gov/statesystem/glossaryandmethodology.html", "https://www.cdc.gov/pcd/issues/2011/nov/11_0032.htm", "https://www.cdc.gov/pcd/issues/2009/jan/07_0227.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00050448.htm", "https://www.cdc.gov/pcd/issues/2009/jan/08_0026_fr.htm", "https://www.cdc.gov/tobacco/campaign/tips/groups/general-public.html", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00045731.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5612a5.htm", "https://www.cdc.gov/niosh/docket/archive/docket321.html", "https://www.cdc.gov/pcd/collections/Global_Response_Cardiovascular_Disease.htm", "https://www.cdc.gov/niosh/docket/archive/docket150.html", "https://www.cdc.gov/nchs/fastats/access-to-health-care.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5934a3.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00001072.htm", "https://www.cdc.gov/nhsn/faqs/faq-mdro-cdi.html", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5701md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm6012a6.htm?s_cid=mm6012a6_w", "https://www.cdc.gov/pcd/issues/2006/oct/06_0059.htm" ], "impact": { "groups": [ { "code": "LM", "group": "Limited manipulation/strength", "prevalence": 0.13, "percent": "13.0%", "estimatedExcluded": null }, { "code": "LR", "group": "Limited reach", "prevalence": 0.02, "percent": "2.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null } ], "summary": "Affects Limited manipulation/strength (13.0%), Limited reach (2.0%), Limited vision (2.4%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/laboratory/drugservice/index.html.", "Locate the element: ", "Confirm the Siteimprove Alfa finding for rule sia-r113 against WCAG 2.5.8 Target Size (Minimum)." ], "remediation_tip": null, "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r113", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W26", "weeks_seen": 3, "affected_pages_csv": "csv/alfa__sia-r113.csv" }, { "instance_id": "VS-dbf28028", "pattern_id": "VS-f7dba940", "a11y_pattern_fingerprint": "384a922a3c558c88072ad37e1a9e7b3e528d7257ceff50f9b4089eeb335d3f4f", "a11y_pattern_display_id": "A11Y-PAT-384A922A3C55", "a11y_occurrence_fingerprint": "a16ec21d7c056235f3d9c0160ba893adae9d3813828eb4efa0e7656699c54dbd", "a11y_occurrence_display_id": "A11Y-OCC-A16EC21D7C05", "url": "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "xpath": "", "html_snippet": null, "wcag_sc": "2.5.3", "wcag_name": "Label in Name", "wcag_level": "A", "wcag_version": "2.1", "wcag_category": "WCAG 2.1 A", "evidence_status": "automated-indicator", "rule_id": "sia-r14", "rule_label": "Accessible name of link or button matches visible label", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r14", "severity": "Moderate", "frequency": { "instances": 213, "pages_affected": 96, "total_pages_scanned": 1667 }, "likely_source": "template", "summary": "Accessible name of link or button matches visible label (WCAG 2.5.3)", "description": "Accessible name of link or button matches visible label. Detected by Siteimprove Alfa rule sia-r14 on 96 of 1667 scanned pages (213 instances).", "examples": [ { "url": "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/diabetes/es/signs-symptoms/sintomas-de-la-diabetes.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/diabetes/es/signs-symptoms/sintomas-de-la-diabetes.html", "xpath": "", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "https://www.cdc.gov/diabetes/es/signs-symptoms/sintomas-de-la-diabetes.html", "https://www.cdc.gov/spanish/NIOSH/docs/2011-133_sp" ], "affected_pages": [ "https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html", "https://www.cdc.gov/diabetes/es/signs-symptoms/sintomas-de-la-diabetes.html", "https://www.cdc.gov/spanish/NIOSH/docs/2011-133_sp", "https://www.cdc.gov/dnpao-state-local-programs/php/data-research/communication-resources.html", "https://www.cdc.gov/tobacco/campaign/tips/spanish/historias/nathan.html", "http://www.cdc.gov/nchhstp/careers/index.html", "https://www.cdc.gov/salmonella/about?CDC_AAref_Val=https%3A%2F%2Fwww.cdc.gov%2Fsalmonella%2Fgeneral%2Findex.html", "https://www.cdc.gov/training-development/php/tools/index.html", "https://www.cdc.gov/tobacco/campaign/tips/spanish/dejar-fumar/medicamentos/como-usar-medicamentos/aerosol-nasal-de-nicotina.html", "https://www.cdc.gov/diabetes/es/treatment/tratamiento-de-los-niveles-bajos-de-azucar-en-la-sangre-hipoglucemia.html", "https://www.cdc.gov/healthy-swimming/es/response/responding-to-raccoons-in-and-near-the-pool.html", "https://www.cdc.gov/salmonella/treatment/index.html", "https://www.cdc.gov/nchs/covid19/npals/adsc.htm", "https://www.cdc.gov/mycoplasma/php/laboratories/specimen-packing.html", "https://www.cdc.gov/antimicrobial-resistance-laboratory-networks/communications/index.html", "https://www.cdc.gov/global-health/countries/egypt.html", "https://www.cdc.gov/pneumococcal/es/vaccines/tipos-de-vacunas-antineumococicas.html", "https://www.cdc.gov/national-program-cancer-registries/registry-plus", "https://www.cdc.gov/listeria/risk-factors/index.html", "https://www.cdc.gov/lung-cancer/es/prevention/index.html", "https://www.cdc.gov/epstein-barr/about/index.html", "https://www.cdc.gov/spanish/niosh/docs/2004-110_sp", "https://www.cdc.gov/act-early/es/digital-online-checklist/4-months.html", "https://www.cdc.gov/uti/hcp/clinical-guidance/index.html", "https://www.cdc.gov/measles/php/guidance/index.html" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "WS", "group": "Without speech", "prevalence": 0.005, "percent": "0.5%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Without speech (0.5%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/vaccines-adults/es/recommended-vaccines/como-pagar-las-vacunas.html.", "Locate the element: ", "Confirm the Siteimprove Alfa finding for rule sia-r14 against WCAG 2.5.3 Label in Name." ], "remediation_tip": null, "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r14", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W26", "weeks_seen": 3, "affected_pages_csv": "csv/alfa__sia-r14.csv" }, { "instance_id": "VS-77adcdbc", "pattern_id": "VS-9074b4dd", "a11y_pattern_fingerprint": "c042f1c43047e74a3a99fc9cdce9873052ae0bc0103160872e57f7d1ae646b54", "a11y_pattern_display_id": "A11Y-PAT-C042F1C43047", "a11y_occurrence_fingerprint": "403a2ef3f788168cad917423ff2c8adb1774207335ca2bc37172632ce0785e27", "a11y_occurrence_display_id": "A11Y-OCC-403A2EF3F788", "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "img[height=\"8\"][alt=\" \"][width=\"140\"]", "html_snippet": "\"", "wcag_sc": "1.1.1", "wcag_name": "Non-text Content", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "image-alt", "rule_label": "Images must have alternative text", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI", "severity": "Critical", "frequency": { "instances": 2789, "pages_affected": 260, "total_pages_scanned": 1667 }, "likely_source": "template", "summary": "Images must have alternative text (WCAG 1.1.1)", "description": "Images must have alternative text. Detected by axe-core rule image-alt on 260 of 1667 scanned pages (2789 instances).", "examples": [ { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "img[height=\"8\"][alt=\" \"][width=\"140\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "img[height=\"63\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "td[bgcolor=\"#000099\"][width=\"50%\"][height=\"19\"]:nth-child(6) > img[width=\"1\"][height=\"1\"][alt=\" \"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047023.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047023.htm", "xpath": "img[height=\"10\"][alt=\" \"][src$=\"spacer.gif\"]", "html_snippet": "\"" } ], "example_pages": [ "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047023.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm" ], "affected_pages": [ "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047023.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000800.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000678.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5632md.htm", "https://www.cdc.gov/pcd/issues/2011/nov/11_0032.htm", "https://www.cdc.gov/pcd/issues/2009/jan/07_0227.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5019a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000017.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00050448.htm", "https://www.cdc.gov/pcd/issues/2009/jan/08_0026_fr.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00045731.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000732.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5612a5.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00001072.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5701md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5539a1.htm", "https://www.cdc.gov/pcd/issues/2006/oct/06_0059.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5735a1.htm", "https://www.cdc.gov/pcd/issues/2011/mar/toc.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00015602.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5617md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00031155.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5516a1.htm" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm.", "Locate the element: img[height=\"8\"][alt=\" \"][width=\"140\"]", "Confirm the axe-core finding for rule image-alt against WCAG 1.1.1 Non-text Content." ], "remediation_tip": "Give every a meaningful alt attribute. Use alt=\"\" only for decorative images so screen readers skip them.", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W26", "weeks_seen": 3, "affected_pages_csv": "csv/axe-core__image-alt.csv" }, { "instance_id": "VS-8f9b2adc", "pattern_id": "VS-a24eaa8c", "a11y_pattern_fingerprint": "aa9e49a0a44e133f7f70d004def68ef7733d7b19d14351f0dc788e8451df11b6", "a11y_pattern_display_id": "A11Y-PAT-AA9E49A0A44E", "a11y_occurrence_fingerprint": "65ce087a90bce4e8d3e1dc839e0f27e96b8360ad14b0630e8bc618ae80cb0621", "a11y_occurrence_display_id": "A11Y-OCC-65CE087A90BC", "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "\"", "html_snippet": null, "wcag_sc": "1.1.1", "wcag_name": "Non-text Content", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "sia-r2", "rule_label": "Image has accessible name", "engine_key": "alfa", "tool": "Siteimprove Alfa", "rule_url": "https://alfa.siteimprove.com/rules/sia-r2", "severity": "Moderate", "frequency": { "instances": 1456, "pages_affected": 136, "total_pages_scanned": 1667 }, "likely_source": "template", "summary": "Image has accessible name (WCAG 1.1.1)", "description": "Image has accessible name. Detected by Siteimprove Alfa rule sia-r2 on 136 of 1667 scanned pages (1456 instances).", "examples": [ { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "xpath": "\"", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000800.htm" ], "affected_pages": [ "https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5711md.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000800.htm", "https://www.cdc.gov/pcd/issues/2011/nov/11_0032.htm", "https://www.cdc.gov/pcd/issues/2009/jan/07_0227.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00050448.htm", "https://www.cdc.gov/pcd/issues/2009/jan/08_0026_fr.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00045731.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5612a5.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00001072.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5701md.htm", "https://www.cdc.gov/pcd/issues/2006/oct/06_0059.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5516a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5641a7.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00056071.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5753a5.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00050472.htm", "https://www.cdc.gov/pcd/issues/2005/nov/05_0082_zhs.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5817a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5632a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047031.htm", "https://www.cdc.gov/mmwr/volumes/65/wr/mm6524e3.htm?s_cid=mm6524e3_w", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00046191.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00047291.htm", "https://www.cdc.gov/mmwr/volumes/65/wr/mm6528a5.htm?s_cid=mm6528a5_w" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/pcd/issues/2008/oct/08_0080.htm.", "Locate the element: \"", "Confirm the Siteimprove Alfa finding for rule sia-r2 against WCAG 1.1.1 Non-text Content." ], "remediation_tip": "Give every an accessible name (alt text), or alt=\"\" if purely decorative.", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://alfa.siteimprove.com/rules/sia-r2", "possible_duplicate_of": "VS-77adcdbc", "possible_duplicate_pattern": "VS-9074b4dd", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W24", "last_seen": "2026-W26", "weeks_seen": 3, "affected_pages_csv": "csv/alfa__sia-r2.csv" }, { "instance_id": "VS-33b88b46", "pattern_id": "VS-9429bb8d", "a11y_pattern_fingerprint": "c648de4cb5289409d5b6e17e5660f259aa35c1f2f576cdf721be47215bdc3ff2", "a11y_pattern_display_id": "A11Y-PAT-C648DE4CB528", "a11y_occurrence_fingerprint": "5b1c8d2ea8cd5415d9cac7c0be41eb69ceaca041da744d4aa4a7d726eabbbb92", "a11y_occurrence_display_id": "A11Y-OCC-5B1C8D2EA8CD", "url": "https://www.cdc.gov/mmwr/cme/weekly_conted.html", "xpath": "#accordion-2", "html_snippet": "
", "wcag_sc": "1.3.1", "wcag_name": "Info and Relationships", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "aria-required-children", "rule_label": "Certain ARIA roles must contain particular children", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/aria-required-children?application=axeAPI", "severity": "Critical", "frequency": { "instances": 6, "pages_affected": 2, "total_pages_scanned": 1667 }, "likely_source": "content", "summary": "Certain ARIA roles must contain particular children (WCAG 1.3.1)", "description": "Certain ARIA roles must contain particular children. Detected by axe-core rule aria-required-children on 2 of 1667 scanned pages (6 instances).", "examples": [ { "url": "https://www.cdc.gov/mmwr/cme/weekly_conted.html", "xpath": "#accordion-2", "html_snippet": "
" }, { "url": "https://www.cdc.gov/mmwr/cme/weekly_conted.html", "xpath": "#acc-panel-2", "html_snippet": "
" }, { "url": "https://www.cdc.gov/free-mind/card-game/facts-and-feels/index.html", "xpath": "#accordion-3", "html_snippet": "
" }, { "url": "https://www.cdc.gov/free-mind/card-game/facts-and-feels/index.html", "xpath": "#acc-panel-3", "html_snippet": "
" }, { "url": "https://www.cdc.gov/free-mind/card-game/facts-and-feels/index.html", "xpath": "#accordion-4", "html_snippet": "
" } ], "example_pages": [ "https://www.cdc.gov/mmwr/cme/weekly_conted.html", "https://www.cdc.gov/free-mind/card-game/facts-and-feels/index.html" ], "affected_pages": [ "https://www.cdc.gov/mmwr/cme/weekly_conted.html", "https://www.cdc.gov/free-mind/card-game/facts-and-feels/index.html" ], "impact": { "groups": [ { "code": "WV", "group": "Without vision", "prevalence": 0.01, "percent": "1.0%", "estimatedExcluded": null }, { "code": "LV", "group": "Limited vision", "prevalence": 0.024, "percent": "2.4%", "estimatedExcluded": null }, { "code": "LCLA", "group": "Limited cognitive, language, or learning ability", "prevalence": 0.11, "percent": "11.0%", "estimatedExcluded": null } ], "summary": "Affects Without vision (1.0%), Limited vision (2.4%), Limited cognitive, language, or learning ability (11.0%)." }, "testing_environment": "Automated: axe-core, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open https://www.cdc.gov/mmwr/cme/weekly_conted.html.", "Locate the element: #accordion-2", "Confirm the axe-core finding for rule aria-required-children against WCAG 1.3.1 Info and Relationships." ], "remediation_tip": "Add the child roles this container role requires (e.g. a list needs listitem children).", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-required-children?application=axeAPI", "obligation": "required", "handling": "review", "policy_source": "default", "policy_reason": null, "policy_evidence": [], "policy_owner": null, "policy_expires": null, "included_in_primary_score": false, "first_seen": "2026-W25", "last_seen": "2026-W26", "weeks_seen": 2, "affected_pages_csv": "csv/axe-core__aria-required-children.csv" }, { "instance_id": "VS-6d1d3b81", "pattern_id": "VS-a0bdbdf6", "a11y_pattern_fingerprint": "16dc632aeac0c7a43122906e8372dfdc7af4fe563901c65d12eb911a35aa6c66", "a11y_pattern_display_id": "A11Y-PAT-16DC632AEAC0", "a11y_occurrence_fingerprint": "631552c0457c7277cedc59b68d39cf449bc1ce21f117c2a5ce656f0106cdb83e", "a11y_occurrence_display_id": "A11Y-OCC-631552C0457C", "url": "https://www.cdc.gov/pcd/issues/2019/19_0054.htm", "xpath": "ol", "html_snippet": "
    ", "wcag_sc": "1.3.1", "wcag_name": "Info and Relationships", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "list", "rule_label": "
      and
        must only directly contain
      1. ,