Systemic Neosporosis in a White Rhinoceros

Angkana Sommanustweechai; Montakan Vongpakorn; Tanit Kasantikul; Jedsada Taewnean; Boripat Siriaroonrat; Mitchell Bush; Nopadon Pirarat

doi:10.1638/2009-0048.1

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Angkana Sommanustweechai,^* Montakan Vongpakorn,^* Tanit Kasantikul,^* Jedsada Taewnean,^* Boripat Siriaroonrat,^* Mitchell Bush,^* Nopadon Pirarat^*

^*From the Zoological Park Organization, 71 Rama 5, Dusit, Bangkok, 10300 Thailand (Sommanustweechai, Kasantikul, Siriaroonrat); the Khao Kheow Open Zoo, 237 Moo 7 Bangpra, Sri Racha, Chonburi, 20110 Thailand (Taewnean, Bush); the Parasitology Section, National Institute of Animal Health Kaset Klang, Chatuchak, Bangkok, 10900 Thailand (Vongpakorn); and the Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, 10130 Thailand (Pirarat). Correspondence should be directed to Dr. Angkana (angangkana@yahoo.com).

Abstract

Neosporosis was diagnosed in a 16- year-old female white rhinoceros (Ceratotherium simum) that died suddenly without clinical signs. Histopathology revealed disseminated protozoan tachyzoites in liver, adrenal cortex, kidney, and intestine, with morphology compatible with either Toxoplasma or Neospora. The organism was identified as Neospora caninum with the use of primary rabbit anti–N. caninum antibody immunohistochemistry and polymerase chain reaction. The exact source of infection remains unknown, but it is suspected that N. caninum oocysts were ingested from the soil.

Citation Download Citation

Angkana Sommanustweechai, Montakan Vongpakorn, Tanit Kasantikul, Jedsada Taewnean, Boripat Siriaroonrat, Mitchell Bush, and Nopadon Pirarat "Systemic Neosporosis in a White Rhinoceros," Journal of Zoo and Wildlife Medicine 41(1), 165-168, (1 January 2010). https://doi.org/10.1638/2009-0048.1

Received: 4 July 2009; Published: 1 January 2010

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