"...drug-resistant tuberculosis, malaria, leprosy, plague, polio, dengue fever, and chagas disease, no of which is treatable."
'I may be mistaken, but I believe most or all of these are indeed treatable."
Wrong. Not any of the current versions of these diseases have any treatment other than supporting the symptoms, and nothing in sight. There have been no advances in antibiotics in the recent past and nothing of any promise in test right now. If you have children that have strong immune systems you might just receive a gift from school, if not you might find some new bugs living in your family. Some of these problems might not kill you, but they can certainly hold your attention for a long, long time. The cost of treating TB twenty years ago was about $600 in the worst cases, total expenditure, now it's about $25,000 every year, for however long you last. Or you could try chagas. Do a google search and take a look at what's comming, almost a thousand new cases since the first of the year. It's a wonderful guest that loves your face, and it comes from one area and it's not the US. Do a search.