The Importance of Durability in BCG Vaccination

A BCG vaccination in an older adult could result in an 80% drop in respiratory infections and a 50% drop in other infections. The key is going to be to look at a couple of things: When is the durability of the effect? And how often would we have to be giving boosters or repeat BCGs if we thought that it wore off over time? We're not there yet, but one step certainly seems to be to figure out if it works in the short term.