A historical review of the evolution of concepts, postulates and guidelines concerning disease causation from early germ theory to current work in the area of chronic noncontagious diseases. Students and researchers in epidemiology, clinical medicine, microbiology and related fields will value discussion of changing criteria as these apply to speci

also occurs. New outbreaks of yellow fever have occurred in Colombia and Trinidad and new outbreaks of rift valley fever have occurred in Egypt. Chapter 6, Arenaviruses: The biochemical and physical properties have now been clar ified, and they show a remarkable uniformity in the various viruses constituting the group. The possibility that prenatal infection with LCM may result in hydrocephalus and chorioretinitis has been raised. Serologic surveys have suggested the existence of Lassa virus infection in Guinea, Central African Empire, Mali, Senegal, Cameroon, and Benin, in addition to...

This is a companion volume to Viral Infections of Humans: Epidemiology and Control. The apparent success of that book in bridging the gap between texts on basic microbiology and those on clinical infectious diseases led to editing this one on bacterial infections, the chapters of which are organized in exactly the same format of 12 units: introduction, historical background, methodology, biological characteristics of the organism, descriptive epidemiology, mechanisms and routes of transmission, pathogenesis and im- munity, patterns of host response, control and prevention, unresolved...