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1 December 2003 PTERYGODERMATITES NYCTICEBI (NEMATODA: RICTULARIIDAE): ACCIDENTAL DETECTION OF ENCAPSULATED THIRD-STAGE LARVAE IN THE TISSUE OF A WHITE-FRONTED MARMOSET
Hiroshi Sato, Kayoko Matsuo, Haruo Kamiya, Tomoko Ishikawa, Sachi Okabayashi, Natsuki Kishi, Yumi Une
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Abstract

Twin, white-fronted marmosets (Callithrix geoffroyi) born and raised in a zoo in Japan died at 7 mo of age. Several encapsulated nematode larvae were detected in the intestinal wall, as well as a few in the mesenteric lymph nodes of 1 of the twins. In the other marmoset, no encapsulated nematode larva was detected in the organs, but many adult Pterygodermatites nycticebi were found in the intestinal lumen. In the past 5 yr, 5 primates kept in the same zoo, i.e., 1 squirrel monkey (Saimiri sciureus), 2 Pygmy marmosets (Cebuella pygmaea), 1 Senegal galago (Galago senegalensis), and 1 cotton-top tamarin (Saguinus oedipus), died from heavy infestation with the same nematode. A few migrating larvae of the rictulariid were also identified histologically in the intestinal wall and liver of the cotton-top tamarin. Although no other primate currently held in the same zoo was infected with the rictulariid, German cockroaches (Blattella germanica) collected with traps near marmoset cages had encapsulated P. nycticebi larvae, indicating latent perpetuation of the life cycle of this rictulariid species in the zoo premises. Our results indicated that encapsulation or migration of third-stage larvae of P. nycticebi might occur accidentally in the organs of callithrichid primates.

Hiroshi Sato, Kayoko Matsuo, Haruo Kamiya, Tomoko Ishikawa, Sachi Okabayashi, Natsuki Kishi, and Yumi Une "PTERYGODERMATITES NYCTICEBI (NEMATODA: RICTULARIIDAE): ACCIDENTAL DETECTION OF ENCAPSULATED THIRD-STAGE LARVAE IN THE TISSUE OF A WHITE-FRONTED MARMOSET," Journal of Parasitology 89(6), 1163-1166, (1 December 2003). https://doi.org/10.1645/GE-3216
Received: 25 February 2003; Accepted: 1 May 2003; Published: 1 December 2003
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