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Relapsing fever, described by Hippocrates in Thasos as "ardent fever" still occurs either in louse-borne epidemics or sporadically as tick-borne disease in almost every country in the world and yet its literature is confused and replete with contradictory reports and misinformation.
Doctor Felsenfeld has brought order out of this confusion in his monograph on Borrelia, the etiological agent not only for human borreliosis but for disease in domestic animals and in birds. Certain strains of Bor- relia also attack the mucous membranes of man as the familiar "Vincent's angina."
The book is almost entirely devoted to a study of human borreliosis (relapsing fever), which it approaches in sections on the microbiology of the innumerable species, their epidemiology, pathology, clinical picture, diagnosis, and treatment. Finally, a 20-minute rapid staining method for treponemataceae in frozen sections is described and 749 references are appended.
The various species of Borrelia responsible for relapsing fever
Ross A. Borrelia, Strains, Vectors, Human and Animal Borreliosis. Am J Dis Child. 1973;126(4):565-566. doi:10.1001/archpedi.1973.02110190461031