A CHALLENGE TO THE VALIDITY OF THE VI TEST FOR THE DETECTION OF CHRONIC TYPHOID CARRIERS.
D000937:Antigen-Antibody Reactions; D002353:Carrier State; D005243:Feces; D006801:Humans; D012475:Salmonella; D012485:Salmonella typhi; D012698:Serologic Tests; D012760:Shigella; D013019:South Africa; D013223:Statistics as Topic; D014435:Typhoid Fever; D014436:Typhoid-Paratyphoid Vaccines; D014556:Urine
D014436:Typhoid-Paratyphoid Vaccines
ANTIGEN-ANTIBODY REACTIONS; CARRIER STATE; FECES; SALMONELLA; SALMONELLA TYPHOSA; SERODIAGNOSIS; SHIGELLA; SOUTH AFRICA; STATISTICS; TYPHOID; URINE