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Clinical and Diagnostic Laboratory Immunology, July 2001, p. 843-846, Vol. 8, No. 4
1071-412X/01/$04.00+0   DOI: 10.1128/CDLI.8.4.843-846.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.

Heartwater (Cowdria ruminantium Infection) as a Cause of Postrestocking Mortality of Goats in Mozambique

Cornelis P. J. Bekker,1 Daan Vink,2 Carlos M. Lopes Pereira,3,dagger Wendela Wapenaar,2 Afonso Langa,3 and Frans Jongejan2,4,*

Division of Bacteriology1 and Division of Parasitology and Tropical Veterinary Medicine,2 Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands; Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort 0110, South Africa4; and Faculdade de Veterinária, Universidade de Eduardo Mondlane, Maputo, Mozambique3

Received 9 November 2000/Returned for modification 17 January 2001/Accepted 4 April 2001

A serological survey in Mozambique to detect antibodies to Cowdria ruminantium, the etiologic agent of heartwater, revealed a seroprevalence of 8.1% (n = 332) for goats in the northern province of Tete and of 65.6% (n = 326) for goats in the southern provinces. Translocation of 10 serologically negative goats from Tete to farms in the south resulted in two clinical cases of heartwater that were fatal. In addition, four goats seroconverted within the study period of 5 weeks. One goat showed no symptoms. Two goats died of other causes, whereas the remaining goat went missing after 1 week. Experimental needle infections of goats and sheep were conducted to confirm results and to isolate different strains of C. ruminantium. These data indicate that translocation of goats from the north to the south of Mozambique bears a high risk of C. ruminantium infection, which can cause fatal disease.

* Corresponding author. Mailing address: Division of Parasitology and Tropical Veterinary Medicine, Faculty of Veterinary Medicine, Utrecht University, P.O. Box 80.165, 3508 TD Utrecht, The Netherlands. Phone: (31-30) 2532568. Fax: (31-30) 2540784. E-mail: F.Jongejan{at}vet.uu.nl.

dagger Present address: Veterinary Epidemiology Unit, National Directorate of Livestock, Ministry of Agriculture, Maputo, Mozambique.

Clinical and Diagnostic Laboratory Immunology, July 2001, p. 843-846, Vol. 8, No. 4
1071-412X/01/$04.00+0   DOI: 10.1128/CDLI.8.4.843-846.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.


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