Typhoid fever laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Diagnosis

Diagnosis is made by blood, bone marrow or stool cultures and with the Widal test (demonstration of salmonella antibodies against antigens O-somatic and H-flagellar). In epidemics and less wealthy countries, after excluding malaria, dysentery or pneumonia, a therapeutic trial time with chloramphenicol is generally undertaken while awaiting the results of Widal test and blood cultures.