Order Primates (Primates)

Rylands, Anthony B.; Valladares‐Pádua, Cláudio; Silva, Roberto da Rochae; Catão‐Dias, José Luiz; Pissinatti, Alcides; Guimarães, Marta Brito

doi:10.1002/9780470376980.ch25

Cited by 6 publications

(3 citation statements)

References 86 publications

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“…Thus, it is worth mentioning that parasitic diseases that can cause different clinical conditions, such as watery diarrhea, dysentery, colic, anorexia, and even death, are the main findings observed during NHP necropsy [6,7]. Gastrointestinal protozoa stand out among simian infections.…”

Section: Introductionmentioning

confidence: 99%

Gastrointestinal Parasites Affecting Non-Human Primates That Are Kept Ex Situ and Their Handlers in Different Brazilian Institutions: Diagnosis and Analysis of Risk Factors

Dib,

Barbosa,

da Silva

et al. 2023

Pathogens

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Aim: Determining gastrointestinal parasites’ frequency in non-human primates (NHPs) and handlers in different Brazilian institutions, and associate it with management information. Methods: Different institutions in São Paulo (A), Brasília (B), Rio de Janeiro (C), Pará (D) and Santa Catarina (E) were included in the study. Fecal samples were processed by using coproparasitological techniques; information about NHP handling and professionals’ routine were collected through the use of questionnaires. Results: In total, 33.1% of 511 NHP samples were positive for parasites; the Entamoebidae Group and Strongyloides sp.-compatible eggs were the most detected protozoa and helminths, respectively. The Entamoebidae Group was mainly diagnosed in Alouatta from Institutions E and D, and was also the only parasite detected in handlers. Strongyloides-compatible eggs were mostly evident in fecal samples collected from Cebidae from Institutions B and D. Some risk factors associated with parasite infection were a high number of animals in the same enclosure and their use for research protocol purposes, whereas quarantine, a post-infection vacant period in enclosures and antiparasitic supply were categorized as protective factors against these agents’ infection. Conclusions: Parasites showing different transmission routes but concomitantly circulating in NHP institutions located in different Brazilian regions were identified in the current study, with an emphasis on those presenting zoonotic potential.

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Section: Introductionmentioning

confidence: 99%

Gastrointestinal Parasites Affecting Non-Human Primates That Are Kept Ex Situ and Their Handlers in Different Brazilian Institutions: Diagnosis and Analysis of Risk Factors

Dib,

Barbosa,

da Silva

et al. 2023

Pathogens

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“…Biópsia foi realizada para colheita de amostras da massa em ducto biliar, fígado e vesícula biliar para avaliação histopatológica e Introduction Over the past years, the number of cases of neoplasm cases reported in nonhuman primates has increased considerably. The reasons for this increase may be the greater life span and longevity of these individuals, due to improvement in husbandry conditions in zoological parks and research centers, along with the adoption of more detailed pathology protocols (Rylands et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Extrahepatic Cholangiocarcinoma in an adult Black Howler Monkey (Primates: Atelidae)

et al. 2019

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Over the past years, the number of cases of neoplasms reported in nonhuman primates has increased considerably, with hepatocellular tumors observed in several species. Here, a case of extrahepatic cholangiocarcinoma in an adult male Black Howler Monkey (Alouatta caraya) is presented. The animal, kept as a pet, was admitted to the Veterinary Hospital with clinical signs of cholestasis. After unsuccessful medical treatment, the animal was submitted to a cholecystoduodenostomy. During the surgical procedure, the hepatobiliary system was meticulously observed. The liver showed no macroscopic alterations; however, there was a solid mass throughout the common bile duct. Biopsy specimens were collected from the bile duct mass, liver, and gallbladder for histological and immunohistochemical evaluation. Histological examination of the liver showed diffuse accentuated vacuolization and necrosis, besides hemosiderin accumulation inside hepatocytes. In the portal region, there was an accentuated proliferation of biliary ducts, which were replete with bilirubin. Discrete, neutrophilic, inflammatory infiltrates and fibrosis were also observed. The bile duct mass showed a cellular proliferation of epithelial origin, confirmed on immunohistochemical analysis. The arrangement, characteristics, and growth pattern of these cells revealed a malignant neoplasm. Despite the success of the procedure, the animal died hours later. Cholangiocarcinoma generally presents with a high mortality rate, since its late clinical presentation makes therapy ineffective due to its large extension at the time of diagnosis. The owner did not allow a necropsy; therefore, the presence of other neoplasms and important organ alterations, which may be aggravated the patient's clinical condition, were not confirmed.

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“…However, one should be aware that they occur and can have zoonotic significance (MIGAKI, 1986;RYLANDS, 2001;SCHMIDT, 2001;BERNSTEIN & DIDIER, 2009).…”

Section: Mota Et Almentioning

confidence: 99%

Natural infection by Microsporum canis in a capuchin monkey

Mota

Ferreira

Nery³

et al. 2017

Cienc. Rural

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This paper described a case of a capuchin monkey (Sapajus libidinosus) with non-pruritic skin lesions. During the physical examination, multifocal areas of alopecia with crusts, erythema and scaling compatible with dermatophytosis were reported on the right fore and hind limbs and on tail. Fungal culture findings revealed a diagnosis of dermatophytosis due to Microsporum canis. The animal was successfully treated with itraconazole. This is the first report of a dermatophytosis case in S. libidinosus and the first description of an effective treatment in this species.

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Order Primates (Primates)

Cited by 6 publications

References 86 publications

Gastrointestinal Parasites Affecting Non-Human Primates That Are Kept Ex Situ and Their Handlers in Different Brazilian Institutions: Diagnosis and Analysis of Risk Factors

Gastrointestinal Parasites Affecting Non-Human Primates That Are Kept Ex Situ and Their Handlers in Different Brazilian Institutions: Diagnosis and Analysis of Risk Factors

Extrahepatic Cholangiocarcinoma in an adult Black Howler Monkey (Primates: Atelidae)

Natural infection by Microsporum canis in a capuchin monkey

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