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Cerebrospinal Fluid Bacterial Antigen

No Benefit Beyond Gram Stain


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Bacterial Antigen Test (BAT)

Slide 3

May 2010

The bacterial antigen test uses antibodies to bacterial antigens linked to polystyrene latex particles, which agglutinate in the presence of corresponding antigen. The clinical usefulness of bacterial antigen testing has been questioned in several studies. Further, changes in the epidemiology of bacterial meningitis pathogens related to the pneumococcal, meningococcal, and H. influenzaetype b vaccines have likely affected the positive predictive value of bacterial antigen testing.



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