because we haven’t done a good job creating a wide array of TB treatments, a highly infectious and totally resistant strain could emerge. It probably wouldn’t sweep through Earth in a matter of weeks or months—we must remember that TB divides (and sickens) quite slowly relative to most other pathogens, and that it primarily sickens those with immune systems compromised by malnutrition, concomitant illness, or poor living conditions. But TB could once again become the fully global crisis it was until seventy years ago.[*1]
