Journal
VETERINARY PARASITOLOGY
Volume 146, Issue 3-4, Pages 302-306Publisher
ELSEVIER
DOI: 10.1016/j.vetpar.2007.03.001
Keywords
Cytauxzoon manul; Cytauxzoon felis; domestic cat; Pallas' cat; piroplasm; Otocolobus manul
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In a random, blind study, six domestic cats were assigned to two treatment groups that received either sterile water or dexamethasone by subcutaneous injection prior to intravenous inoculation with Pallas' cat (Otocolobus manul) blood infected with Cytauxzoon manul. A seventh domestic cat served as a control and was inoculated only with sterile water. Cats were monitored for clinical signs consistent with cytauxzoonosis, and periodically screened for hemoparasitemia. All domestic cats (6/6) that received Pallas' cat blood infected with C. manul developed a low but detectible parasitemia by 9 days post-inoculation, yet remained clinically healthy. All domestic cats (7/7) were subsequently challenged with Cytauxzoon felis and developed clinical signs typical of cytauxzoonosis within 5 days post-challenge. Affected animals were euthanized and cytauxzoonosis was confirmed by histopathology. While inoculation of domestic cats with Pallas' cat blood infected with C manul induced a parasitemia, it did not cause disease or provide protection against challenge with C felis. Further studies are warranted to determine the potential for interspecies transmission and disease with C. manul. (C) 2007 Published by Elsevier B.V.
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