In 1898, while serving with the French troops in Africa, Vincent1 reported fourteen cases of a special form of diphtheritic angina due to the fusiform bacillus. No claim was made that the condition had previously been recognized. An American dentist, Willoughby Miller, working in Germany, had described this infectious agent as early as 1883. His observations were comprehensive, including mention of the fact that the micro-organisms would not grow on ordinary culture mediums. The following year a classic description of this condition was published by Plaut, who recognized Miller's work by terming the infectious agent "Miller's organism."
The priority of Plaut's observations and the fact that Vincent merely elaborated them form the basis for the German contention that "Plaut-Vincent's angina" is the proper name for this condition.
The actual inciting cause of Plaut-Vincent's infection is universally accepted as a peculiar form of spirochete associated with a fusiform bacillus.
HARRELL V. THE PRESENT STATUS OF PLAUT-VINCENT'S INFECTION. Arch Otolaryngol. 1931;14(1):1–8. doi:10.1001/archotol.1931.03580020009001
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