The Vi antigen test is a diagnostic tool used to detect the presence of Salmonella Typhi, the bacterium responsible for causing typhoid fever. It helps in the timely diagnosis and management of the infection.

The test poses minimal risks to the patient, similar to those associated with routine blood tests, such as minor bruising or discomfort at the site of blood collection.

The test results provide qualitative information about the presence or absence of the Vi antigen of Salmonella Typhi.

A positive result indicates the presence of the Vi antigen, suggesting an active infection with Salmonella Typhi. A negative result indicates the absence of the antigen, but does not rule out the possibility of the infection.

Sample Type: The test requires a blood sample.