Skip to main content
See every side of every news story
Published loading...Updated

Officials warn of tuberculosis outbreak at California high school

At least three TB cases triggered mass testing and contact tracing at Archbishop Riordan High School with hybrid learning starting Feb. 9 to limit spread, officials said.

  • Following confirmation of a third TB case, Archbishop Riordan High School in San Francisco canceled classes on Friday, January 30, and shifted to remote and hybrid options, SFDPH said.
  • The outbreak traces to an initial case reported Nov. 17, prompting testing on students and staff between January 20 and February 13 due to TB's slow growth and incubation of up to 10 weeks.
  • Health officials implemented contact tracing and testing, recommending masking and symptom monitoring while assessing transmission risk as "moderate" during screening.
  • Then, beginning Feb. 9, hybrid learning will start and continue through Feb. 20, while all students and staff must test by Feb. 20 or be barred from campus and indoor activities.
  • The outbreak affects about 1,150 students and 10 staff, and Dr. Monica Gandhi said TB is treatable but can last months.
Insights by Ground AI

10 Articles

Think freely.Subscribe and get full access to Ground NewsSubscriptions start at $9.99/yearSubscribe

Bias Distribution

  • 56% of the sources are Center
56% Center

Factuality Info Icon

To view factuality data please Upgrade to Premium

Ownership

Info Icon

To view ownership data please Upgrade to Vantage

SF Gate broke the news in San Francisco, United States on Wednesday, January 28, 2026.
Too Big Arrow Icon
Sources are mostly out of (0)

Similar News Topics

News
Feed Dots Icon
For You
Search Icon
Search
Blindspot LogoBlindspotLocal