By the time that David Livingstone died on the banks of Lake Bangweulu, his name was already legend -- first, as a great explorer, becoming the first European to lay eyes on Victoria Falls and Lake Malawi, and second as a fierce advocate against the slave trade. But we often forget that he was a medical doctor, and made significant contributions to the nascent field of tropical medicine. In Episode 18 of Bedside Rounds, I recount his innovations in fighting malaria and discuss all the fun (by which I mean quite gross, and very deadly) tropical diseases that he described in his journals. Even though the phrase was almost certainly made up, you should still listen to "Dr. Livingstone, I presume?"