Speaking as someone who’s diagnosed and treated it, leprosy probably won’t increase much. It’s one of the few infections that HIV doesn’t seem to increase. We might get a few more from Obama’s southern invasion, but nothing significant. Only about 3% of people are genetically susceptible; it can’t spread a lot. And there’s not that much of it in Mexico or Central America to be spread. Obama hasn’t figured out how to import it from Brazil and I doubt he wants to import Hindu cases from India.
Something positive.