Trichuriasis in Zoo-Keeping Hamadryas Baboons (Papio hamadryas): Case Report and Pathomorphological Findings

A case of trichuriasis in three zoo-keeping baboons is described.One of the animals had a high degree of infection and marked clinical symptoms, and the other two -low degree of infection and good general condition.The baboons were treated according to two regimens: 1. Albendazole (7.5 mg/kg) orally for three days; 2. Combination of albendazole (7.5 mg/kg) and ivermectin (0.4 mg/kg), both drugs orally for three days.Despite treatment, the condition of the first baboon deteriorated and he was euthanized.The postmortem examination revealed pathomorphological changes in the intestines, liver, kidneys and lungs.Most of the alterations were associated directly or indirectly with the trichurid infection, and another reflected past diseases that have further worsened the animal's condition.The combined treatment and the anti-epidemic measures taken led to a complete and long-lasting elimination of trichuriasis in the animals with a low degree of infection.