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Revista Brasileira de Parasitologia Veterinária

On-line version ISSN 1984-2961


ANDRADE, Márcia Cristina R.  and  MARCHEVSKY, Renato S.. Histopathologic findings of pulmonary acariasis in a rhesus monkeys breeding unit. Rev. Bras. Parasitol. Vet. [online]. 2007, vol.16, n.4, pp.229-234. ISSN 1984-2961.

Histological lesions in the lungs of rhesus monkeys (Macaca mulatta) related with Pneumonyssus simicola were evidenced. The most prominent pathologic alterations included numerous thin-walled cysts 1-5 mm diameter scattered throughout the lungs, bronchiolitis, peribronchiolitis where the mites were found associated with pigmented and non-pigmented materials. Our study included data from 347 rhesus monkeys submitted to necropsies during 20 years. Four adult debilitated animals were found with pulmonary acariasis which showed a very low incidence of parasite (1.2%) in the colony. Most of the published literature described as common and widespread pulmonary acariasis in Old World monkeys. The present study confirms the ubiquity of P. simicola in captive born and raised rhesus monkeys that would compromise experimental studies involving the respiratory system.

Keywords : Rhesus macaques; pulmonary acariasis; Pneumonyssus simicola; pathology.

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