Interesting, we just had a couple of people around here with nasty cases of this covering the roofs of their mouths and insides of their cheeks. I got a prompt for hand-foot-mouth disease, but the other strong hit was a Mumps related agent. We also have an unusually nasty 'flu' going around with Strep and Pneumonia that dowses highly engineered, likely Mycoplasma spp. Would like to say it came from the sky, but doesn't appear that way. Quite a concoction and apparently not covered in the doctrine?