Category: Microbiology, U.S. National Library of Medicine, United States, Maryland
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History of Medicine INTRODUCTION Tropical medicine began in the nineteenth century when doctors diagnosed infectious diseases in soldiers and colonists who had lived in tropical areas. In 1877, English scientist Sir Patrick Manson proved that mosquitoes spread elephantiasis to humans and he later theorized that the same was true with malaria. This was an enormous step in tropical medicine and the understanding of tropical diseases, leading to advances in prevention methods. The field of tropical medicine consists of the study, treatment, and prevention of tropical diseases. Tropical diseases can be defined as those that are mainly of parasitic origin and are common in tropical or subtropical areas.
History of Medicine Bacterial Genetics: 1946-58 His inquisitiveness, facility for establishing connections between scientific disciplines, and grasp of institutional strategy led Joshua Lederberg to the forefront of successive advances in science: molecular genetics in the 1940s and 1950s; the search for extraterrestrial life in the 1950s and 1960s; computers and artificial intelligence in the 1960s and 1970s. His discoveries in genetics produced a deeper understanding not only of the biochemical mechanism of inheritance and mutation in microorganisms, but of the evolution of diseases, the causes of drug resistance, and the possibilities of genetic engineering and gene therapy.