Shigella and salmonella infections in Frederick county.
D000293:Adolescent; D000368:Aged; D002353:Carrier State; D004405:Dysentery, Bacillary / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008396:Maryland; D012478:Salmonella Food Poisoning / Q000453:epidemiology; D012480:Salmonella Infections / Q000453:epidemiology*; D012760:Shigella; D014435:Typhoid Fever / Q000453:epidemiology; D014881:Water Supply