Many of the diseases we assume are exclusively tropical actually have frequently occurred in developed countries with temperate climates, such as the Ebola Virus in the U.S. and Malaria and Yellow Fever in Britain. Desowitz shows that human migrants have unknowingly carried dangerous pathogens around the world. Also examines the potentially catastrophic health problems facing the Third World, and weighs the risk that new Ôdoomsday bugs’ will emerge and be transferred to the developed world. With temperatures, sea levels and pop’s. set to rise, he predicts that the virulent Ôhot strain’ diseases of the tropics will inch closer to our temperate climes.