Yersinia antigen detection by line blot (serum/plasma)

What Is This Test For?

This test identifies specific antigens produced by certain types of *Yersinia* bacteria in your blood. Antigens are molecules that can trigger an immune response. Detecting these antigens helps confirm if you have an active infection caused by these bacteria, which can cause illnesses like gastroenteritis or other systemic symptoms.

How Is the Test Performed?

A small blood sample is drawn from your arm. The sample is processed to detect the presence of Yersinia antigens using a line blot assay, a rapid and sensitive method that can provide results within a few hours.

When Might You Need This Test?

Your healthcare provider may recommend this test if you have symptoms like fever, abdominal pain, diarrhea, or other signs of infection—especially if you’ve been exposed to *Yersinia* bacteria or have risk factors such as recent travel to areas with known outbreaks.

What Are Possible Results?

A positive result means Yersinia antigens are detected in your blood, suggesting an active infection. A negative result means no detectable antigens were found, but this does not rule out infection in all cases. Follow-up testing or clinical correlation may be needed.