The typhus pathogen was transmitted by rat fleas to human beings, who then transmitted it to other humans and in some strains from human to human. This book is devoted to a discussion of the biology of typhus and history of typhus fever in human affairs.
Hans Zinsser (1878-1940) received his doctorate at Columbia University and also was an instructor of bacteriology at Columbia University. Throughout his career he was also a professor at Stanford University as well as Harvard University. His scientific work focused on bacteriology and immunology and he is greatly associated with Brill's disease as well as typhus. Gerald N. Grob is the Henry E. Sigerist Professor of the History of Medicine (emeritus). He is an elected member of the Institute of Medicine of the National Academy of Sciences and has been the president of the American Association for the History of Medicine.