Diagnosis

Typhoid is diagnosed by detecting the presence of S. typhi via blood, stool, urine, or bone marrow sample

A blood culture during the first week of the fever can show S. typhi bacteria.

Other tests that can help diagnose this condition include:

· ELISA urine test to look for the bacteria that cause Typhoid fever

· Fluorescent antibody study to look for substances that are specific to Typhoid bacteria

· Platelet count (platelet count may be low)

· Stool culture