title: Some conceptions of epidemics in general by Wade Hampton Frost.
mesh_terms: D000818:Animals; D004196:Disease Outbreaks / Q000266:history; D006666:History of Medicine; D006801:Humans; D012485:Salmonella typhi; D012621:Seasons; D014435:Typhoid Fever / Q000453:epidemiology / Q000635:transmission