“…21 -23 The results obtained in Paris were reflected not only in Berlin, but elsewhere. For example, an American textbook 24 published soon after the French and German results had been reported concluded that the value of anti-toxin serum had been established, but, 'so that readers may themselves to a certain extent have a basis for forming their own opinions', statistics were presented showing trends in fatality among patients admitted to the Willard Parker Hospital for Contagious Diseases in New York, and the Kaiser-und-Kaiserin Friedrich Augusta Hospital in Berlin. 25 Statistics were frequently used to assess the efficacy of anti-streptococcal and anti-diphtheritic serotherapy in Paris.…”