Moderate TB Risk Prompts Action at SF Archbishop Riordan High School
Officials Warn of Moderate TB Risk at SF High School
San Francisco health officials have issued a 'moderate' risk warning following a tuberculosis outbreak at Archbishop Riordan High School, with three active cases confirmed since November 2025. The San Francisco Department of Public Health identified these instances among the school's community of about 1,150 students and 100 staff, prompting urgent action to curb potential spread.[1][2]
School Response and Testing Measures
In response, the school canceled in-person classes this week, shifting to remote assignments posted daily by teachers. Starting February 9, hybrid learning will resume until February 20, when proof of TB testing is required for campus entry. Every student and staff member must test between January 20 and February 13, as part of coordinated screening and contact tracing efforts with health authorities. Indoor masks are recommended to limit airborne transmission through coughs and sneezes.[2]
Understanding TB and Next Steps
Tuberculosis mimics cold or flu symptoms and incubates up to 10 weeks, making early detection challenging yet treatable with medication. Officials stress no full closure is needed, prioritizing education continuity while ensuring community safety through these proactive steps.[1][2]
About the Organizations Mentioned
San Francisco Department of Public Health
The **San Francisco Department of Public Health (SFDPH)** is the city's primary public health agency, dedicated to protecting and promoting the health of all San Franciscans through direct care, prevention, and emergency response.[1][3][6] Its vision: making San Francisco the healthiest place on earth.[4] Established as the San Francisco Health Department and evolving into SFDPH, the agency operates under a Health Commission that sets policies, approves budgets, and oversees operations, aligning with city goals set by the Mayor and Board of Supervisors.[4] Key divisions include the **San Francisco Health Network**, delivering care to over 125,000 insured and uninsured residents annually via Zuckerberg San Francisco General Hospital, Laguna Honda Hospital and Rehabilitation Center, and 14+ primary care clinics—irrespective of immigration status.[1][2][3] The **Population Health Division** tackles core services like consumer safety, health promotion, disease prevention, disaster preparedness, and monitoring emerging threats.[1][3] **Behavioral Health Services** leads in mental health and substance use treatment, prevention, and intervention.[1] Notable achievements include innovative syringe access programs reducing HIV and hepatitis C transmission among injection drug users via clean supplies, testing, and referrals.[3] SFDPH integrates with city efforts like Pit Stops for hygiene and needle disposal, enhancing street-level public health.[3] It addresses inequities in homelessness, racial disparities in heart disease, maternal mortality, and life expectancy through coordinated services with agencies like the Human Services Agency.[2] Currently, SFDPH remains a cornerstone of San Francisco's resilience, providing 24/7 services amid urban challenges like substance use and housing crises.[1][2][6] For business and tech audiences, its data-driven emergency responses and telehealth expansions during crises signal scalable models for health-tech innovation, fostering equitable outcomes in dense, diverse cities.[1][3] With administrative hubs at 101 Grove Street, it continue
Archbishop Riordan High School
**Archbishop Riordan High School** is a co-ed, diocesan Catholic high school in San Francisco's Archdiocese, rooted in the Marianist tradition, delivering rigorous college-prep education focused on faith, community, service, and innovation.[4][6] Established in 1949 as an all-boys school named after Archbishop Patrick William Riordan, it transitioned to coeducational in 2020, evolving from San Francisco's oldest male-only high school while upholding Marianist values like integral education, family spirit, and adaptation to change.[6][2] Located at 175 Phelan Ave., the campus features renovated facilities, including a Makerspace and enhanced STEAM (science, technology, engineering, arts, math) programs launched around 2016-17 to equip students for tech-driven futures.[1][5] Riordan challenges students to "Think More, Do More, Be More" through 18 AP courses (with 14 recent top scorers), 13 advanced STEM offerings, Project Lead The Way curriculum, and hands-on initiatives like robotics, coding clubs, and an engineering major vision.[1][2][4][5] Extracurriculars shine with 18 sports (including co-ed sailing), 30+ clubs, a renowned marching/concert/jazz band—the city's only high school marching band—and arts like advanced video production.[1][3][4][6] A 10:1 student-faculty ratio, house system, boarding program (SF's only), and learning support foster inclusivity, with alumni (30 teaching on-site) and international band tours highlighting success.[4] Under Principal Tim Reardon, praised for stable, passionate leadership, Riordan earns strong reviews for its supportive vibe, thriving students, and value via scholarships like St. Francis.[3] In San Francisco's innovation hub, it mirrors diverse demographics, preps leaders for tech/engineering diversity, and boasts a 45-
