This episode covers the second Nobel Prize in Physiology or Medicine, which was awarded to Sir Ronald Ross in 1902. The Nobel Committee chose to give Ross the award “for his work on malaria, by which he has shown how it enters the organism and thereby has laid the foundation for successful research on this disease and methods of combating it.” Topics include a bit about malaria disease, the work Ross did to prove mosquitos spread malaria, and using genetically modified mosquitoes to control mosquito populations.