[Considerations on contamination by surface water].
D004340:Drug Contamination; D010284:Paratyphoid Fever / Q000635:transmission*; D014435:Typhoid Fever / Q000635:transmission*; D014867:Water; D014881:Water Supply
D014867:Water
PARATYPHOID FEVERS/transmission; TYPHOID FEVER/transmission; WATER SUPPLY
Enige waarnemingen betreffende contact met oppervlaktewater.