Epizootic amebiasis outbreak in wild black howler monkeys (Alouatta caraya) in a wildlife facility during captivity prior to translocation - Recommendations to wildlife management programs
The capture and quarantine of non-human primates could be necessary in some circumstances including those required under environmental permit. Mortality is undesirable for wildlife management programs and could be related to opportunistic pathogens, for example, deaths due to intestinal protozoa infection outbreaks as described here. Parasitological, necroscopic, microbiological, and molecular tests were used in the diagnosis of severe necrotic enteritis leading to death of three female and two male black howler monkeys (Alouatta caraya) captured and held in quarantine prior to translocation. Parasitological tests showed the presence of cysts of Entamoeba histolytica/dispar (5/5), Entamoeba coli (5/5) and Giardia duodenalis (1/5). Necroscopic assessment revealed areas of severe multifocal necrosis in the intestinal mucosa and submucosa. Histopathological examination revealed the presence of structures morphologically compatible to Entamoeba spp. in all individuals examined. Furthermore, G. duodenalis (1/5) was demonstrated by the nested PCR technique. During temporary captivity of non-human primates in management programs, proper handling protocols, including fast or immediate destination, are suggested in order to mitigate the negative effects of stress and decrease the risk of infections.
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