Typhoid: epidemiological investigation and control measures.
D002353:Carrier State; D004196:Disease Outbreaks; D005511:Food Handling; D006801:Humans; D012722:Sewage; D014195:Travel; D014435:Typhoid Fever / Q000453:epidemiology* / Q000517:prevention & control*; D006113:United Kingdom; D014881:Water Supply
D012722:Sewage