. "Whether this high mortality indicates a greater tendency on the part of the Jews in Prussia to contract influenza or a more frequent fatal issue of the disease among them can not be determined from the official statistics (see H. Singer, Allgemeine und Specielle Krankheitslehre der Juden, pp. 73-74, Leipsic, 1894).Smallpox is a very contagious disease, from which the Jews appear to suffer less t" . . .