Pilot Study to assess the efficacy of ivermectin and fenbendazole for treating captive-born olive baboons (papio anubis) coinfected with strongyloides fülleborni and trichuris trichiura

Mason V. Reichard, Jennifer E. Thomas, Maria Chavez-Suarez, Cassandra O. Cullin, Gary L. White, Emily C. Wydysh, Roman F. Wolf

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we evaluated the efficacy of combined treatment with ivermectin and fenbendazole (IVM-FBZ) for treating captive olive baboons (Papio anubis) infected with Strongyloides fülleborni and Trichuris trichiura, 2 common nematode parasites of these NHP. Infected baboons were treated for a total of 9 wk with ivermectin (400 μg/kg IM twice weekly) and fenbendazole (50 mg/kg PO once daily for 3 d; 3 rounds of treatment, 21 d apart). Five baboons naturally infected with both S. fülleborni and T. trichiura (n = 4) or S. fülleborni alone (n = 1) received the combination therapy; an additional baboon infected with both parasites served as a nontreated control. The efficacy of IVM-FBZ was measured as the reduction in fecal egg counts of S. fülleborni and T. trichiura as determined by quantitative fecal flotation examination after treatment of baboons with IVM-FBZ. All baboons treated with IVM-FBZ stopped shedding S. fülleborni and T. trichiura eggs by 8 d after treatment and remained negative for at least 161 d. The nontreated control baboon shed S. fülleborni and T. trichiura eggs throughout the study period. Our results indicate that the IVM-FBZ regimen was efficacious for treating olive baboons infected with S. fülleborni and T. trichiura.

Original languageEnglish (US)
Pages (from-to)52-56
Number of pages5
JournalJournal of the American Association for Laboratory Animal Science
Volume56
Issue number1
StatePublished - Jan 2017
Externally publishedYes

Keywords

  • Eggs per gram of feces
  • EPG
  • FEC
  • Fecal egg count
  • Ivermectin-fenbendazole combined therapy
  • IVM-FBZ

ASJC Scopus subject areas

  • Animal Science and Zoology

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