I am listening to the history of food and I have a course on language (the secret life of words English Words and their Origins) on deck - so far it is really good. I have to say that infectious diseases is not on my top ten list. I do have another one about powerful forgotten women in history (or something like that) in my list as well. If I was going to listen to a medical one it would be the Medical lies and Half Truths one - but it would probably just piss me off so I probably won't