Patient & Visitor Alert: Because flu cases are on the rise, starting February 24, children 12 and younger
will be restricted from visiting hospitals and certain inpatient facilities throughout Carolinas HealthCare System. Learn more.

Carolinas HealthCare System
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FAQs for Immunology and Flow Cytometry

What is a B27?
The HLA B27 antigen is found in about six percent of the population. It is located on all nucleated cells in the body, including white blood cells. The presence of the HLA B27 antigen is associated with ankylosing spondylitis and other arthritic diseases.