CitiesTokyoBangladeshPoverty AreasCholeraFloodsDiarrheaUrban PopulationShigellaTyphoid FeverDysentery, BacillaryChild Nutrition DisordersVibrio cholerae O1SanitationHospitals, UrbanVibrio choleraeProstitutionInfant, NewbornFecesSalmonella typhiMalnutritionUrban HealthHospitalsEntamoeba histolyticaSerotypingDisease OutbreaksDeveloping CountriesPrevalenceSocioeconomic FactorsSeasonsPregnancyCross-Sectional StudiesInterviews as Topic