Lackland AFB is the Air Force Basic Training Base.

https://www.kens5.com/article/news/community/lackland-afb-designated-one-of-four-potential-quarantine-sites-in-us-amid-coronavirus-outbreak/273-5f50aabe-3781-4c52-bade-d3c9c9673997

Lackland AFB designated one of four potential quarantine sites in US amid coronavirus outbreak

Federal officials say that, should the need arise, defense personnel won't come into contact with potential evacuees.