BacteriuriaAsymptomatic InfectionsPyuriaUrinary Tract InfectionsPyelonephritisUrineCystitisSulfamethizoleUrinary CatheterizationPregnancy Complications, InfectiousUrinary CathetersMedical StaffEscherichia coli InfectionsReagent StripsAnti-Infective Agents, UrinaryNitrofurantoinJob DescriptionSpermatocidal AgentsKlebsiellaElectrophoresis, Starch GelSkilled Nursing FacilitiesEscherichia coliContraceptive Devices, FemaleNursing StaffCatheter-Related InfectionsLiability, LegalAnti-Bacterial AgentsPregnancyNigeriaVirulence FactorsBacteriaColony Count, MicrobialPrevalenceBacteriological TechniquesUrinalysisSensitivity and SpecificityProspective StudiesUrography