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  • Title: Identification and treatment of Strongyloides cebus in captive ring-tailed lemurs (Lemur catta) in the midwestern United States.
    Author: Hiebert K, Gardhouse S, Sarvi J, Herrin B, Miller K, Chelladurai JJ.
    Journal: Vet Parasitol Reg Stud Reports; 2023 Apr; 39():100839. PubMed ID: 36878624.
    Abstract:
    Strongyloides spp. are parasitic enteric nematodes that infect a variety of hosts. While the Strongyloides spp. that affect humans, apes, and Old World primates have been previously identified, this genus has not been as fully investigated in prosimian species such as ring-tailed lemurs (Lemur catta). A high burden (4+) of larvated eggs and larvae were identified in the fecal samples of two captive ring-tailed lemurs during routine intake examination at a zoo in the midwestern United States. Conventional PCR targeting the 18S RNA gene of nematodes was used identified the parasite as Strongyloides cebus. The lemurs were initially treated with 0.2 mg/kg ivermectin orally twice, two weeks apart. Repeat fecal sampling showed persistent, but decreased eggs and larvae from 4+ to 3+. Ivermectin treatment was repeated with the addition of fenbendazole at 50 mg/kg orally once daily for 3 days. No parasite stages were seen on fecal samples one week and six weeks after the last ivermectin indicating successful clearance of the infection.
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