Introduction of Salmonella typhi in the United States via travelers.
D002648:Child; D006801:Humans; D007194:India; D007223:Infant; D008297:Male; D012485:Salmonella typhi / Q000302:isolation & purification; D014195:Travel; D014435:Typhoid Fever / Q000175:diagnosis / Q000453:epidemiology*; D014481:United States