Journal Article

Effect of Eliminating Seropositive Canines on the Transmission of Visceral Leishmaniasis in Brazil

Reynaldo Dietze, Geisa Baptista Barros, Luciléia Teixeira, Jason Harris, Kelly Michelson, Aloísio Falqueto and Ralph Corey

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 25, issue 5, pages 1240-1242
Published in print November 1997 | ISSN: 1058-4838
Published online November 1997 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/516096
Effect of Eliminating Seropositive Canines on the Transmission of Visceral Leishmaniasis in Brazil

More Like This

Show all results sharing these subjects:

  • Infectious Diseases
  • Immunology
  • Public Health and Epidemiology
  • Microbiology

GO

Show Summary Details

Preview

In Brazil, where Leishmania chagasi causes endemic American visceral leishmaniasis (AVL), the spread and maintenance of human disease are attributed to canine reservoirs. However, despite measures directed toward the elimination of infected canines, the incidence of human disease continues to increase. To evaluate the role of infected canines in the acquisition of AVL by humans, we undertook a controlled intervention study in three similar, but isolated, valleys of Pancas, EspíBrito Santo, Brazil. In the two experimental (intervention) valleys, infected dogs were eliminated whereas in the control valley, seropositive canines remained untouched. During the 12-month study period, human seropositivity rates, as measured by dot enzyme-linked immunosorbent assay, increased from 15% to 54% in the intervention valleys and from 14% to 54% in the control valley. The elimination of infected canines in the intervention valleys did not result in a statistically significant difference between the incidences of human serological conversion in the intervention and control valleys at either 6 (20% and 22%, respectively; P = .5961) or 12 months (26% and 27%, respectively; P = .9442). The role of humans as a significant reservoir for AVL is proposed as an explanation for the study results.

Journal Article.  0 words. 

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.