Tuberculosis outbreak recorded at Bay Area private high school as all classes suspended [View all]

Source: The Independent

Monday 02 February 2026 09:14 EST


Classes at a San Francisco Catholic high school have been suspended after dozens of students and staff were found to have a latent form of tuberculosis. The San Francisco Department of Public Health issued a health advisory regarding the outbreak at Archbishop Riordan High School, where over 50 people have latent tuberculosis and at least three have active cases.

Tuberculosis is caused by bacteria that attack the lungs, and is spread through the air when an infected person coughs or sneezes. The disease can only be spread when active. In the latent stage, TB is not contagious, the public health agency noted.

In a letter to the community, Archbishop Riordan High School President Tim Reardon said that in-person classes would be suspended and students would study remotely through February 9, with a hybrid model lasting through February 20, according to SFGate. After that date, only students and staff who have tested negative will be allowed on campus, according to the report.

The first of the three active cases of TB was reported in November. In addition to ongoing testing, health officials are urging anyone with the active for of the disease to stay home. Meanwhile, testing at the school will continue until the outbreak is over.

Read more: https://www.the-independent.com/news/world/americas/tuberculosis-outbreak-san-francisco-high-school-b2912251.html?test_group=lighteradlayout

---

Dafuq?

I and I'm sure many DUers recall growing up taking the "Tine Test" to determine if you had been exposed to TB (and would show an immune reaction). Of course nowadays, they have updated tests for exposure. TB is a bacteria and not a virus so no "vaccine".