TB Outbreak Shocks San Francisco High School: Response and Prevention

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Over 50 latent tuberculosis cases detected at SF high school amid outbreak - SFGATE

TB Outbreak Shocks San Francisco High School

A tuberculosis outbreak at Archbishop Riordan High School in San Francisco has uncovered over 50 latent cases alongside three active infections, prompting swift action from health officials. The first positive test emerged in November, but the pathogen's long incubation period of two to ten weeks likely fueled the spread during close classroom interactions and sports.[1][2]

School Response and Health Measures

In response, the school halted in-person classes last Friday, suspended them for the upcoming week, and canceled numerous sporting events to curb transmission. Collaborating with the San Francisco Department of Public Health, administrators launched comprehensive contact tracing and mandated testing for all students and staff, aiming for completion by mid-February. Students remain cautiously optimistic, citing transparent communication from leadership.[1][3]

Understanding TB Risks and Prevention

Experts note TB thrives in prolonged indoor settings like schools, where laughing, talking, and shared activities accelerate airborne spread. While latent cases show no symptoms, early detection through screening prevents progression to active disease, which is treatable with antibiotics. This incident underscores the need for vigilant ventilation and routine health checks in educational environments.[1][2]

About the Organizations Mentioned

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-

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

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