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To the Editor.—The case report by Dr. Albert P. Rosen and Dr. Rudolf A. Jaworski on "Postvaccination Encephalitis: A Problem in Differential Diagnosis," in the August 1949 issue of the American Journal Of Diseases Of Children, page 248, seems to confuse me further rather than to clarify the issue of postvaccination encephalitis. It appears that in many rare entities some statements are "carryovers" from "book to book"—of necessity. An example of this is the apparently harmless statement: "The clinical course is rapid, with death or amelioration within one or two weeks." In such a rarity as postvaccination encephalitis the differential diagnosis may depend on this statement, yet few of us know that in Perdrau's original description (J. Path. & Bact. 31:17, 1928) of the pathologic aspects of postvaccination encephalitis (classic and fundamental) three types of cases are listed, one of which is a subchronic variety with symptoms appearing
ROSEN E. POSTVACCINATION ENCEPHALITIS. Am J Dis Child. 1950;79(3):539-540. doi:10.1001/archpedi.1950.04040010552013