I knew a few people who had TB in the late 1970s, not all that close to your era but not that far away, either.

The caregivers did not mask or glove or anything. Perhaps they should have, or perhaps once it was under treatment the risk of transmission was greatly reduced. At that time, most of the TB cases were among people who lived on the fringes--the homeless, the lifestyle drug users, hippie types who opened the door to anybody with hair and weed--and the level of care others gave was low, as was the responsibility of the person with the illness. The ones I knew were drug users who spent every day high. They were supposed to take a lot of prescription drugs for two years, but often forgot for days at a time. By now, they might well have died of their illness.