{ "domain": "www.cdc.gov", "week": "2026-W30", "generatedAt": "2026-07-26T12:59:46.849Z", "reports": [ { "instance_id": "VS-1e645ffe", "pattern_id": "VS-179ad9b3", "a11y_pattern_fingerprint": "a85f7841d6d258839aa49175b3807f2b26f2d9c09aa5a9db308c9180f668c523", "a11y_pattern_display_id": "A11Y-PAT-A85F7841D6D2", "a11y_occurrence_fingerprint": "510a498e71ad53f41feeaa9da1079b249f119732021c9a002a515bc2e3f78f4b", "a11y_occurrence_display_id": "A11Y-OCC-510A498E71AD", "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "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": 5655, "pages_affected": 568, "total_pages_scanned": 3095 }, "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 568 of 3095 scanned pages (5655 instances).", "examples": [ { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "", "html_snippet": null }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "", "html_snippet": null }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "xpath": "", "html_snippet": null } ], "example_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4948a2.htm" ], "affected_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4948a2.htm", "https://www.cdc.gov/niosh/npg/npgd0037.html", "https://www.cdc.gov/overdose-resources/communication-resources/index.html", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00033214.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5325a1.htm", "https://www.cdc.gov/laboratory/specimen-submission/detail.html?CDCTestCode=CDC-10133", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6029md.htm?s_cid=mm6029md_w", "http://www.cdc.gov/nchs/nvss/facility-worksheets-guide/27.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4933a1.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4916a5.htm", "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.html", "http://www.cdc.gov/pcd/issues/2009/jul/09_0013.htm", "https://www.cdc.gov/pcd/issues/2011/jul/10_0196_es.htm", "http://www.cdc.gov/pcd/issues/2010/jul/10_0066.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4942a3.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00016527.htm", "https://www.cdc.gov/niosh/npg/npgd0532.html", "https://www.cdc.gov/niosh/npg/npgd0568.html", "https://www.cdc.gov/pcd/issues/2013/12_0336.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5501a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4851a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5331a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm6044a8.htm?s_cid=mm6044a8_w" ], "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 http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm.", "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-W30", "weeks_seen": 7, "affected_pages_csv": "csv/alfa__sia-r113.csv" }, { "instance_id": "VS-189e5132", "pattern_id": "VS-f7dba940", "a11y_pattern_fingerprint": "384a922a3c558c88072ad37e1a9e7b3e528d7257ceff50f9b4089eeb335d3f4f", "a11y_pattern_display_id": "A11Y-PAT-384A922A3C55", "a11y_occurrence_fingerprint": "1181d56e23f597200508d5dbc4df3439c8c985eb8bd2a48736795674acd06cfd", "a11y_occurrence_display_id": "A11Y-OCC-1181D56E23F5", "url": "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.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": 351, "pages_affected": 173, "total_pages_scanned": 3095 }, "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 173 of 3095 scanned pages (351 instances).", "examples": [ { "url": "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/diabetes/es/prevention-type-2/la-sorprendente-verdad-sobre-la-prediabetes.html", "xpath": "", "html_snippet": null }, { "url": "https://www.cdc.gov/diabetes/es/prevention-type-2/la-sorprendente-verdad-sobre-la-prediabetes.html", "xpath": "", "html_snippet": null }, { "url": "http://www.cdc.gov/nis/confidentiality/index.html", "xpath": "", "html_snippet": null } ], "example_pages": [ "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.html", "https://www.cdc.gov/diabetes/es/prevention-type-2/la-sorprendente-verdad-sobre-la-prediabetes.html", "http://www.cdc.gov/nis/confidentiality/index.html" ], "affected_pages": [ "https://www.cdc.gov/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.html", "https://www.cdc.gov/diabetes/es/prevention-type-2/la-sorprendente-verdad-sobre-la-prediabetes.html", "http://www.cdc.gov/nis/confidentiality/index.html", "http://www.cdc.gov/niosh/docs/2012-149", "https://www.cdc.gov/sepsis/hcp/clinical-care/index.html", "http://www.cdc.gov/national-program-cancer-registries/registry-plus/index.html", "https://www.cdc.gov/national-program-cancer-registries/success/index.html", "https://www.cdc.gov/nssp/php/onboarding-resources/phase-1-new-facility-steps-to-engage.html", "http://www.cdc.gov/ebola/es/causes/como-se-propaga-la-enfermedad-del-ebola.html", "https://www.cdc.gov/ncird/investigation/hepatitis-unknown-cause/laboratories-testing-typing.html", "https://www.cdc.gov/balamuthia/es/hcp/diagnosis-testing/index.html", "http://www.cdc.gov/nchhstp/director-letters/index.html", "https://www.cdc.gov/chagas/es/treatment/tratamiento-de-la-enfermedad-de-chagas.html", "https://www.cdc.gov/chemical-threats-and-toxins-laboratory/php/laboratory-capabilities-and-methods/index.html", "https://www.cdc.gov/salmonella/outbreaks/cotham-06-24/investigation.html", "https://www.cdc.gov/spanish/niosh/hhe/contactenos.html", "https://www.cdc.gov/tobacco/campaign/tips/spanish/historias/rose.html", "https://www.cdc.gov/tobacco/campaign/tips/spanish/socios/index.html", "https://www.cdc.gov/niosh/publications/es/hcp/numbered/2012-120sp.html", "https://www.cdc.gov/prostate-cancer/es/about/index.html", "https://www.cdc.gov/global-health/countries/burma.html", "http://www.cdc.gov/nchhstp/whats-new/bicillin-updates.html", "https://www.cdc.gov/nchhstp/about/atlasplus.html", "https://www.cdc.gov/niosh/construction/es/nail-gun-safety/seguridad-con-las-pistolas-de-clavos.html", "https://www.cdc.gov/children-and-school-preparedness/about/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/tourette-syndrome/es/about/sobre-el-sindrome-de-gilles-de-la-tourette.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-W30", "weeks_seen": 7, "affected_pages_csv": "csv/alfa__sia-r14.csv" }, { "instance_id": "VS-38c2a6e4", "pattern_id": "VS-9074b4dd", "a11y_pattern_fingerprint": "a63aeb2e943401209ab1a27548f4db2826919c02cf8213d2900e7cb35f61d431", "a11y_pattern_display_id": "A11Y-PAT-A63AEB2E9434", "a11y_occurrence_fingerprint": "ba7c758d21eb11bec2118d2d37224f958cd7168a2f10f94e5323b444d8099c37", "a11y_occurrence_display_id": "A11Y-OCC-BA7C758D21EB", "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"", "wcag_sc": "1.1.1", "wcag_name": "Non-text Content", "wcag_level": "A", "wcag_version": "2.0", "wcag_category": "WCAG 2.0 A", "evidence_status": "automated-indicator", "rule_id": "image-alt", "rule_label": "Images must have alternative text", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/image-alt?application=axeAPI", "severity": "Critical", "frequency": { "instances": 6313, "pages_affected": 591, "total_pages_scanned": 3095 }, "likely_source": "template", "summary": "Images must have alternative text (WCAG 1.1.1)", "description": "Images must have alternative text. Detected by axe-core rule image-alt on 591 of 3095 scanned pages (6313 instances).", "examples": [ { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "img[height=\"10\"][alt=\" \"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(3) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/00000412.htm", "xpath": "td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "html_snippet": "\"" }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/00000412.htm", "xpath": "img[height=\"10\"][alt=\" \"][src$=\"spacer.gif\"]", "html_snippet": "\"" } ], "example_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00000412.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4824a1.htm" ], "affected_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00000412.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4824a1.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4948a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5702a4.htm", "http://www.cdc.gov/pcd/issues/2008/oct/07_0170_zhs.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00033214.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5325a1.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4933a1.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4916a5.htm", "http://www.cdc.gov/pcd/issues/2009/jul/09_0013.htm", "https://www.cdc.gov/pcd/issues/2011/jul/10_0196_es.htm", "http://www.cdc.gov/pcd/issues/2010/jul/10_0066.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4942a3.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00016527.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000266.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00001154.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5501a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4851a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5331a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4835a3.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00049320.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00056351.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00035457.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 http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm.", "Locate the element: td[rowspan=\"2\"][width=\"10\"]:nth-child(1) > img[alt=\" \"][width=\"10\"][src$=\"spacer.gif\"]", "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": "WordPress", "tech_remediation_tip": "In the Block Editor, click an Image block and fill \"Alt text\" in the sidebar. In the Media Library, set alt text on each image in the \"Alternative Text\" field so it pre-fills everywhere that image is used.", "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-W30", "weeks_seen": 7, "affected_pages_csv": "csv/axe-core__image-alt.csv" }, { "instance_id": "VS-fa7f626f", "pattern_id": "VS-a24eaa8c", "a11y_pattern_fingerprint": "08fcf4104776325c4249523ea3a19eb9da7511b09ae3fe405e100fb8fe2dfcd4", "a11y_pattern_display_id": "A11Y-PAT-08FCF4104776", "a11y_occurrence_fingerprint": "6dac4b7853f8d9a38afbaa827872c08a3687c5399e98f81047a63485a62d47bc", "a11y_occurrence_display_id": "A11Y-OCC-6DAC4B7853F8", "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.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": 3605, "pages_affected": 301, "total_pages_scanned": 3095 }, "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 301 of 3095 scanned pages (3605 instances).", "examples": [ { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "\"", "html_snippet": null }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "\"", "html_snippet": null }, { "url": "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "xpath": "\"", "html_snippet": null }, { "url": "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "xpath": "\"", "html_snippet": null } ], "example_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4948a2.htm" ], "affected_pages": [ "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5734a5.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4948a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00033214.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5325a1.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4933a1.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4916a5.htm", "http://www.cdc.gov/pcd/issues/2009/jul/09_0013.htm", "https://www.cdc.gov/pcd/issues/2011/jul/10_0196_es.htm", "http://www.cdc.gov/pcd/issues/2010/jul/10_0066.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4942a3.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00016527.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5501a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4851a2.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5331a4.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00056351.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00035457.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00000490.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00017400.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00050820.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5615a7.htm", "http://www.cdc.gov/mmwr/preview/mmwrhtml/00016132.htm", "https://www.cdc.gov/mmwr/preview/mmwrhtml/00016945.htm", "https://www.cdc.gov/pcd/issues/2007/oct/07_0067_zhs.htm", "https://www.cdc.gov/pcd/issues/2008/jan/06_0177_zhs.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: Siteimprove Alfa, headless Chromium (Playwright). Manual AT verification: Not captured by automated scan — requires manual testing.", "steps_to_reproduce": [ "Open http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4937a4.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-38c2a6e4", "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-W30", "weeks_seen": 7, "affected_pages_csv": "csv/alfa__sia-r2.csv" }, { "instance_id": "VS-6420f3a1", "pattern_id": "VS-9429bb8d", "a11y_pattern_fingerprint": "14ef99803463683d48969f84aa2a6fbb70fea7ff16f3afbdbd67ff01a883df76", "a11y_pattern_display_id": "A11Y-PAT-14EF99803463", "a11y_occurrence_fingerprint": "d26e24a328880a07f41eae5d31421580cd85fdf68c277cdbba84a9c944eafd75", "a11y_occurrence_display_id": "A11Y-OCC-D26E24A32888", "url": "http://www.cdc.gov/nchs/nvss/vsrr/mortality-dashboard.htm", "xpath": "#indicators", "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": 24, "pages_affected": 5, "total_pages_scanned": 3095 }, "likely_source": "unknown", "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 5 of 3095 scanned pages (24 instances).", "examples": [ { "url": "http://www.cdc.gov/nchs/nvss/vsrr/mortality-dashboard.htm", "xpath": "#indicators", "html_snippet": "
" }, { "url": "http://www.cdc.gov/mmwr/mmwrpodcasts.html", "xpath": "#accordion-183", "html_snippet": "
" }, { "url": "http://www.cdc.gov/mmwr/mmwrpodcasts.html", "xpath": "#acc-panel-183", "html_snippet": "
" }, { "url": "http://www.cdc.gov/mmwr/mmwrpodcasts.html", "xpath": "#accordion-184", "html_snippet": "
" }, { "url": "https://www.cdc.gov/respiratory-viruses/data-research/dashboard/activity-levels.html", "xpath": ".combobox-select", "html_snippet": "
    " } ], "example_pages": [ "http://www.cdc.gov/nchs/nvss/vsrr/mortality-dashboard.htm", "http://www.cdc.gov/mmwr/mmwrpodcasts.html", "https://www.cdc.gov/respiratory-viruses/data-research/dashboard/activity-levels.html" ], "affected_pages": [ "http://www.cdc.gov/nchs/nvss/vsrr/mortality-dashboard.htm", "http://www.cdc.gov/mmwr/mmwrpodcasts.html", "https://www.cdc.gov/respiratory-viruses/data-research/dashboard/activity-levels.html", "https://www.cdc.gov/mmwr/cme/serial_conted.html", "https://www.cdc.gov/stophivtogether/hiv-testing/self-testing.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 http://www.cdc.gov/nchs/nvss/vsrr/mortality-dashboard.htm.", "Locate the element: #indicators", "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-W30", "weeks_seen": 6, "affected_pages_csv": "csv/axe-core__aria-required-children.csv" }, { "instance_id": "VS-b57f5fa7", "pattern_id": "VS-f6d344d5", "a11y_pattern_fingerprint": "8776442686871161526d253ecdd106b8a9bf9c8c10050ce7536f5193a06d15c9", "a11y_pattern_display_id": "A11Y-PAT-877644268687", "a11y_occurrence_fingerprint": "170a985bc6c248a7aa1c493ae5c186fc6e7fd4f15c1ed0268f2af967356670f6", "a11y_occurrence_display_id": "A11Y-OCC-170A985BC6C2", "url": "https://www.cdc.gov/monkeypox/php/laboratories/reporting-test-results.html", "xpath": ".table-responsive-md:nth-child(8) > .cdc-table.cdc-table__type-row[role=\"table\"] > .table-body[role=\"rowgroup\"] > div[role=\"row\"]:nth-child(1) > div[data-col=\"2\"][role=\"cell\"] > p[role=\"rowheader\"][data-col=\"1\"]", "html_snippet": "

    260373001

    ", "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-parent", "rule_label": "Certain ARIA roles must be contained by particular parents", "engine_key": "axe-core", "tool": "axe-core", "rule_url": "https://dequeuniversity.com/rules/axe/4.12/aria-required-parent?application=axeAPI", "severity": "Critical", "frequency": { "instances": 2, "pages_affected": 1, "total_pages_scanned": 3095 }, "likely_source": "content", "summary": "Certain ARIA roles must be contained by particular parents (WCAG 1.3.1)", "description": "Certain ARIA roles must be contained by particular parents. Detected by axe-core rule aria-required-parent on 1 of 3095 scanned pages (2 instances).", "examples": [ { "url": "https://www.cdc.gov/monkeypox/php/laboratories/reporting-test-results.html", "xpath": ".table-responsive-md:nth-child(8) > .cdc-table.cdc-table__type-row[role=\"table\"] > .table-body[role=\"rowgroup\"] > div[role=\"row\"]:nth-child(1) > div[data-col=\"2\"][role=\"cell\"] > p[role=\"rowheader\"][data-col=\"1\"]", "html_snippet": "

    260373001

    " }, { "url": "https://www.cdc.gov/monkeypox/php/laboratories/reporting-test-results.html", "xpath": ".table-responsive-md:nth-child(10) > .cdc-table.cdc-table__type-row[role=\"table\"] > .table-body[role=\"rowgroup\"] > div[role=\"row\"]:nth-child(1) > div[data-col=\"2\"][role=\"cell\"] > p[role=\"rowheader\"][data-col=\"1\"]", "html_snippet": "

    \n\n435541000124108

    " } ], "example_pages": [ "https://www.cdc.gov/monkeypox/php/laboratories/reporting-test-results.html" ], "affected_pages": [ "https://www.cdc.gov/monkeypox/php/laboratories/reporting-test-results.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/monkeypox/php/laboratories/reporting-test-results.html.", "Locate the element: .table-responsive-md:nth-child(8) > .cdc-table.cdc-table__type-row[role=\"table\"] > .table-body[role=\"rowgroup\"] > div[role=\"row\"]:nth-child(1) > div[data-col=\"2\"][role=\"cell\"] > p[role=\"rowheader\"][data-col=\"1\"]", "Confirm the axe-core finding for rule aria-required-parent against WCAG 1.3.1 Info and Relationships." ], "remediation_tip": "Place this ARIA role inside its required parent role (e.g. an option must be inside a listbox).", "tech_name": null, "tech_remediation_tip": null, "suggested_fix": "See remediation guidance: https://dequeuniversity.com/rules/axe/4.12/aria-required-parent?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-W29", "last_seen": "2026-W30", "weeks_seen": 2, "affected_pages_csv": "csv/axe-core__aria-required-parent.csv" }, { "instance_id": "VS-2845cb19", "pattern_id": "VS-a0bdbdf6", "a11y_pattern_fingerprint": "d90b2d07ad83c8e8d6a44a49b4ede2ccd7a1d16b448b0b15bf196ccc81655d5f", "a11y_pattern_display_id": "A11Y-PAT-D90B2D07AD83", "a11y_occurrence_fingerprint": "0db9974cce0e1044f9940764b147fd5d18707036f1451a45b99a71353f6c8524", "a11y_occurrence_display_id": "A11Y-OCC-0DB9974CCE0E", "url": "http://www.cdc.gov/bird-flu/prevention/worker-protection-ppe.html", "xpath": ".table.dfe-table.table-no-header:nth-child(8) > .table-body[role=\"rowgroup\"] > .table-row.row[role=\"row\"]:nth-child(2) > .table-col[role=\"cell\"][data-col=\"2\"] > ul", "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. ,