My ex-wife once got intestinal worms. The medicine to get rid of them, which has been on the market forever, and which is on the short list of medicines that the WHO says should be freely available to everyone as a matter of public health? $800 for Americans, literally free everywhere else in the world. Apparently intestinal worms are now so uncommon in the US that the drug is only distributed in extremely small quantities, which The Invisible Hand apparently allows big pharma to charge a fortune for. I brought in the worm in a jar in case the doctors needed to identify it, and apparently so many of the doctors and nurses had never seen one that they asked us if it was alright for them to pass around to take selfies with it. LOL.