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Updated: Jul 31, 2026

Determining the Reactivity and Titre of Serum using a Haemagglutination Assay
Published on: January 29, 2010
How reliable and useful is the latex agglutination test in diagnosing streptococcal throat infection in general
P Hjortdahl1, E Laerum, P Gaustad
1Department of General Practice, University of Oslo, Norway.
Abstract:
A rapid latex agglutination test for diagnosing streptococcal pharyngitis in general practice was evaluated on 226 patients with acute throat infection. The test had a sensitivity of 96% and a specificity of 91% regarding group A beta hemolytic streptococci. The test was fairly simple to perform and the result was available before the patient left the office. The test was supplied as a self-contained kit, was safe to handle and economically acceptable. Even through this test is not a reliable as the traditional microbiological culture, it represents a significant practical and clinical improvement in the daily management of patients with acute throat infections.
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