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This volume represents, in large part, the results of studies on droplet nuclei and their relationship to the spread of disease. The author has been engaged in these investigations for almost 20 years and presents a clear and informative picture of the dynamics of the spread of air-borne infection. Part 1 describes the physics and chemistry of droplets and droplet nuclei and the biology and related physics and chemistry of infection and disinfection. The physiology and parasitology of droplet nuclei contagion are presented. The experimental work that led to the final conclusions is explained and described with clarity. Part 2 is concerned with principles and methods of prevention of infection primarily through an understanding of the forces that are responsible for the spread of air-borne disease. The principles of sanitary ventilation are defined and presented in an understandable manner. The entire book is well written and all terms that may
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