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Evaluation of granulocytic ehrlichiosis in dogs of Missouri, including serologic status to Ehrlichia canis, Ehrlichia equi, and Borrelia burgdorferi.
1992
Stockham S.L. | Schmidt D.A. | Curtis K.S. | Schauf B.G. | Tyler J.W. | Simpson S.T.
Canine granulocytic ehrlichiosis was diagnosed in 37 dogs by finding ehrlichial morulae in 0.1 to 26.2% of their blood neutrophils and eosinophils. All 37 dogs had clinical signs of arthritis or muscular stiffness. Titer to Ehrlichia canis was determined in sera from 31 of the 37 dogs; 25 dogs had titer ranging from 1:20 to 1:5,120. In the other 6 dogs, titer to E canis was < 1:10. The most common hematologic abnormality in these dogs, other than rickettsiemia, was thrombocytopenia. Granulocytes infected with ehrlichial organisms were not found in another 10 dogs that had clinical signs of arthritis or muscular stiffness. Of these 10 dogs, 3 had titer to E canis ranging from 1:40 to 1:320. Titer in the other 7 dogs was < 1:10. Ehrlichial morulae were not found in the granulocytes of 18 healthy dogs. Of these 18 dogs, 9 had titer to E canis ranging from 1:20 to 1:5,120. Titer in the other 9 dogs was < 1:10. Titer to Borrelia burgdorferi was determined in dogs with granulocytic ehrlichiosis, arthritic dogs without detected rickettsiemia, and in healthy dogs. Low titer determined by 2 laboratories was considered to be nonspecific reaction in all 3 groups of dogs and, thus, did not indicate that the arthritic disorders were attributable to canine borreliosis.
Afficher plus [+] Moins [-]Evaluation of an enzyme-linked immunosorbent assay for detection of Eperythrozoon suis antibodies in swine.
1992
Hsu F.S. | Liu M.C. | Chou S.M. | Zachary J.F. | Smith A.R.
An ELISA was developed and tested to detect antibodies to Eperythrozoon suis in swine. Results were compare with those of the indirect hemagglutination (IHA) test. Antigen isolated from swine heavily infected with E suis was used for both tests. Comparison of the ELISA with the IHA test revealed a significant (P < 0.001) correlation between results. Of 114 samples obtained from 9 swine infected with E suis, 8 7.7% were seropositive (titer greater than or equal to 200) via the ELISA, and 80.7% were seropositive (titer greater than or equal to 20) via the IHA test. The sensitivity of the ELISA was greater than that of the IHA test. All blood samples obtained from specific-pathogen-free swine tested negative for E suis antibody. Cross-reactions were not observed between E suis antigen and antisera against various swine and cattle disease agents using ELISA. We concluded that the ELISA may be used for rapid and effective diagnosis of infection with E suis in swine.
Afficher plus [+] Moins [-]Detection of antibodies against infectious Borna disease virus - A comparison of three serological methods-
1992
Lee, D.S. (Cheju Nat'l Univ., Cheju (Korea Republic). Dept. of Veterinary Medicine)
Evaluation of a cell enzyme-linked immunosorbent assay for the detection of borna disease virus antibodies in experimentally infected animals
1992
Lee, D.S. (Cheju National University, Cheju (Korea Republic). Department of Veterinary Medicine)
Optimization of liquid phase enzyme immunoassay for determining of progesterone
1992
Kang, C.B. | Choi, I.K. | Son, M.S. | Hur, J.H. (Gyeongsang National University, Chinju (Korea Republic). College of Veterinary Medicine) | Kim, C.H. (Gyeongsangnam Do Veterinary Service Laboratory, Chinju (Korea Republic))