A tuberculosis outbreak has struck a ritzy private Catholic school in San Francisco, where a least three people were confirmed to have active cases of the bacterial lung infection, according to reports. 3 A tuberculosis outbreak has struck a ritzy private Catholic school in San Francisco, where a least three people were confirmed to have active cases of the bacterial lung infection, according to reports. Download The California Post App, follow us on social, and subscribe to our newslettersTwo more cases have now been found. “All of us have to get tests.”The school has canceled events such as basketball games — and health officials have recommended people at the school wear COVID-19-era-style face masks, the station said. Tuberculosis, once known as “consumption,” is spread through the air when an infected person coughs, sneezes, or even speaks, according to the CDC.