Factor changes in emergence, Swaziland.

Using 0% chemoprophylaxis treatment as a baseline, we calculated the factor differences in cases of emerging antibiotic-resistant TB, occurring in HIV/AIDS+ hosts, as percent chemoprophylaxis use was varied in 10% increments. Given that increasing chemoprophylaxis use had a negligible effect on the emergence of resistance in Swaziland, we have included only the 0, 50 and 100% chemoprophylaxis conditions for purposes of illustration. We note that we use “*” to represent all possible TB/curative antibiotic combinations that can occur with a particular immune status.