Seroincidence of porcine T. solium infection in the Peruvian highlands

H. H. Garcia, Armandoe Gonzalez, C. Gavidia, N. Falcon, T. Bernal, M. Verastegui, S. Rodriguez, V. C W Tsang, Robert H Gilman, H. Mayta, J. Jimenez, P. Castillo, C. A W Evans

Research output: Contribution to journalArticle

Abstract

We performed repeated serological sampling of pigs in an endemic area of the Peruvian highlands (eight villages) to assess the feasibility of detecting incident cases of Taenia solium infection as indicators of ongoing transmission of the parasite. A total of 2245 samples corresponding to 1548 pigs were collected in three sampling rounds (n = 716, 926, and 603, respectively). Village-period specific seroprevalences of antibodies by enzyme-linked immunoelectrotransfer blot (EITB) assay varied from 39% (95% CI: 34, 44) to 76% (95% CI: 72, 79). The prevalence of cysticercosis increased with the age of the pigs (similarly for both sexes). Around 40% of pigs were re-sampled at the end of each 4-month period. Crude incidence risks were 48% (57/120, 95% CI: 43-52) and 58% (111/192, 95% CI: 54-61) for each period. A proportion of seropositive animals became seronegative at the end of each period (23 and 15%). Incidence varied by the village, and the exposure period, and was higher in males than females (but did not differ by age).

Original languageEnglish (US)
Pages (from-to)227-236
Number of pages10
JournalPreventive Veterinary Medicine
Volume57
Issue number4
DOIs
StatePublished - Apr 15 2003

    Fingerprint

Keywords

  • Cysticercosis
  • EITB
  • Epidemiology
  • Incidence
  • Longitudinal studies
  • Taenia solium

ASJC Scopus subject areas

  • Animal Science and Zoology
  • veterinary(all)

Cite this

Garcia, H. H., Gonzalez, A., Gavidia, C., Falcon, N., Bernal, T., Verastegui, M., Rodriguez, S., Tsang, V. C. W., Gilman, R. H., Mayta, H., Jimenez, J., Castillo, P., & Evans, C. A. W. (2003). Seroincidence of porcine T. solium infection in the Peruvian highlands. Preventive Veterinary Medicine, 57(4), 227-236. https://doi.org/10.1016/S0167-5877(02)00234-9