Waller M V, Miller G V, Kelly J J
Am J Clin Pathol. 1975 Jan;63(1):98-105. doi: 10.1093/ajcp/63.3.98.
Elevated titers of serum agglutinators (anti-FabIgG) are associated with significant and severe suppurative infection. Immunosuppression and long-term antibiotic therapy, however, may lead to negative tests.