WILLIAM L. HOPPES, M.D.; ARTHUR WHITE, M.D., F.A.C.P.
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To the editor: Earlier studies in this laboratory showed the usefulness of the double diffusion in agar (Ouchterlony) method for the detection of antibodies to ribitol teichoic acids in the diagnosis of endocarditis due to Staphylococcus aureus (1). More recently Nagel and colleagues (2) compared the Ouchterlony method with the more rapid counter-immunoelectrophoresis for the same purpose. They found cross reactions in 22% of their patients with streptococcal endocarditis and reiterated that cross-reacting antigens have been described in streptococci, Staphylococcus epidermidis, Bacillus pumilus, lactobacilli, and Hemophilus influenzae type B. Until recently, we had found cross reactions only in patients with
HOPPES WL, WHITE A. Staphylococcal Teichoic Acid Antibodies in Serums of Patients with Diphtheroid Endocarditis. Ann Intern Med. 1975;83:431. doi: https://doi.org/10.7326/0003-4819-83-3-431_1
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Published: Ann Intern Med. 1975;83(3):431.
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