Evaluation of enzyme immunoassays in the diagnosis of camel (Camelus dromedarius) trypanosomiasis: a preliminary investigation

P F Rae, M V Thrusfield, A Higgins, C G Aitken, T W Jones, A G Luckins

Research output: Contribution to journalArticlepeer-review

Abstract

Three enzyme immunoassays were used for the serodiagnosis of Trypanosoma evansi in camels in the Sudan in order to evaluate their ability to discriminate between infected and non-infected animals. Two assays were used for the detection of trypanosomal antibodies, one using specific anti-camel IgG conjugate and another using a non-specific Protein A conjugate. The third assay detected the presence of trypanosomal antigens using anti-T. evansi antibodies in a double antibody sandwich assay. Inspection of the frequency distribution of assay results suggested that the ELISA for circulating trypanosomal antibodies using specific antisera and the ELISA for circulating antigens can distinguish between non-infected camels and infected camels exhibiting patent infections or not. The ELISA using Protein A conjugate to bind non-specifically to camel immunoglobulin did not appear to discriminate between infected and non-infected animals.
Original languageEnglish
Pages (from-to)297-307
Number of pages11
JournalEpidemiology and Infection
Volume102
Issue number2
Publication statusPublished - Apr 1989

Keywords

  • Animals
  • Camels
  • Serologic Tests
  • Trypanosomiasis, African
  • Trypanosoma brucei brucei
  • Enzyme-Linked Immunosorbent Assay
  • Antibodies, Protozoan
  • Antigens, Protozoan
  • Sudan

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