Fer pete’s sake, this is NOT a communicable disease. Disease refers to an illness, and in this case these men - who were outdoor laborers in their youth - seem to have gotten kidney failure from either exposure to pesticides or simply dehydration because they didn’t drink enough water during the day while they did heavy physical labor in high temperatures. Eventually the kidneys simply can’t take it.
But this “disease” is not coming here unless Obama sends us all to work on a banana plantation somewhere in Castro’s Cuba.
I see, from thousands of miles away, you have every case exhibiting these symptoms completely diagnosed to the exclusion of all other possibilities, exceeding even the knowledge of the physicians directly examining the patients (who presumably have considered the obvious, seeing as they probably see it a lot; either that, or they're a pack of dishonest grant hustlers, which is entirely possible).