Transactions of the Royal Society of Tropical Medicine and Hygiene
Volume 75, Issue 5 , Pages 706-709, 1981

Serodiagnosis of human strongyloidiasis by an enzyme-linked immunosorbent assay

  • S.M. Carroll

      Affiliations

    • Dept. of Clinical Microbiology, Dept. of Microbiology, University of Western Australia, Queen Elizabeth II Medical Centre, Nedlands, Western Australia 6009
    • ,
  • K.T. Karthigasu

      Affiliations

    • Dept. of Clinical Microbiology, Dept. of Microbiology, University of Western Australia, Queen Elizabeth II Medical Centre, Nedlands, Western Australia 6009
    • ,
  • D.I. Grove

      Affiliations

    • Dept. of Medicine, University of Western Australia and the Repatriation General Hospital, Nedlands, Western Australia 6009

Accepted 12 December 1980.

Abstract 

The sensitivity and specificity of an enzyme-linked immunosorbent assay (ELISA) for the serodiagnosis of strongyloidiasis has been investigated. 45 men with long-standing strongyloidiasis were compared with the same number of age-and sex-matched control subjects. The ELISA detected antibody in 84% of patients with parasitologically proven strongyloidiasis. When the technique was compared with an indirect immunofluorescent assay (IFA), a high correlation coefficient was obtained. Specificity was demonstrated by observing a marked fall in optical density of pooled positive serum after prior incubation with Strongyloides ratti soluble antigen but not after incubation with antigens derived from Ascaris suum or Dirofilaria immitis. The test is simple and offers a useful method for the diagnosis of strongyloidiasis. In these patients it was more reliable than a single parasitological examination of faeces or duodenal contents.

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PII: 0035-9203(81)90156-5

Transactions of the Royal Society of Tropical Medicine and Hygiene
Volume 75, Issue 5 , Pages 706-709, 1981

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