An ELISA with Brucella lipopolysaccharide antigen for the diagnosis of B. melitensis infection in sheep and for the evaluation of serological responses following subcutaneous or conjunctival B. melitensis strain Rev 1 vaccination

Vet Microbiol. 1992 Feb;30(2-3):233-41. doi: 10.1016/0378-1135(92)90117-c.

Abstract

An indirect enzyme-linked immunosorbent assay (ELISA) with unpurified Brucella melitensis smooth lipopolysaccharide (S-LPS) as antigen was evaluated for the serological diagnosis of B. melitensis infection in sheep in comparison with the Rose Bengal (RB), complement fixation (CF), radial immunodiffusion (RID), microplate agglutination (MA) and rivanol agglutination (RIV) tests. Tests RB and CF detected as positive each of the 77 sera from B. melitensis-infected animals tested, the RID (74), MA (76) and the RIV (72) were less sensitive. However, all tests compared were negative when 77 sera from Brucella-free rams were tested. While subcutaneous Rev 1 vaccination induced high response levels in any of the tests, low level responses were obtained upon conjunctival vaccination, particularly in ELISA and RID tests.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agglutination Tests
  • Animals
  • Antibodies, Bacterial / blood*
  • Brucella / immunology*
  • Brucella Vaccine / administration & dosage
  • Brucella Vaccine / immunology*
  • Brucellosis / diagnosis
  • Brucellosis / veterinary*
  • Complement Fixation Tests
  • Enzyme-Linked Immunosorbent Assay
  • Female
  • Immunodiffusion
  • Injections, Subcutaneous / veterinary
  • Lipopolysaccharides / immunology
  • Male
  • Rose Bengal
  • Sheep
  • Sheep Diseases / diagnosis*
  • Vaccination / veterinary

Substances

  • Antibodies, Bacterial
  • Brucella Vaccine
  • Lipopolysaccharides
  • Rose Bengal