Clinical and Diagnostic Laboratory Immunology, March 1998, p. 259-262, Vol. 5, No. 2
1071-412X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Laboratoire de Pathologie Infectieuse et
Immunologie, Institut National de la Recherche Agronomique, 37380 Nouzilly, France,1 and
Laboratorio de
Biología Experimental,
Received 14 July 1997/Returned for modification 2 October
1997/Accepted 8 December 1997
An indirect enzyme-linked immunosorbent assay (ELISA) was developed
for the serological diagnosis of bovine anaplasmosis with purified
recombinant major surface protein 5 (MSP5) of Anaplasma marginale produced in Escherichia coli.
Serum antibody responses against MSP5 were detected in calves
experimentally infected with A. marginale as early as
21 days postinfection and reached maximum titers at 28 days
postinfection. The MSP5 ELISA performed with serum samples taken from
field cattle from different regions of Venezuela showed a
seroprevalence of 47%, which seems to be in accordance with the
reported epidemiological status of bovine anaplasmosis in Venezuela.
Positive results obtained in the MSP5 ELISA were further confirmed by
immunoblotting, with the recombinant MSP5 as the antigen. Thus, these
results confirmed the importance of MSP5 as a suitable antigen for the
serological diagnosis of bovine anaplasmosis.
*
Corresponding author. Mailing address: Laboratoire de
Pathologie Infectieuse et Immunologie, INRA, 37380 Nouzilly,
France. Phone: 33 2 47 42 78 67. Fax: 33 2 47 42 77 79. E-mail: zygmunt{at}tours.inra.fr.
Present address: Dpto. Microbiología y Genética,
Edificio Departamental, Universidad de Salamanca, Avda. Campo Charro
s/n, 37007 Salamanca, Spain.
| Antimicrob. Agents Chemother. | Clin. Microbiol. Rev. | Infect. Immun. |
|---|---|---|
| J. Clin. Microbiol. | J. Virol. | ALL ASM JOURNALS |