Publications by authors named "Asheley Henrique Barbosa Pereira"

Toxoplasmosis is an important zoonotic disease caused by the parasite and is especially fatal for neotropical primates. In Brazil, the Ministry of Health is responsible for national epizootic surveillance, but some diseases are still neglected. Here, we present an integrated investigation of an outbreak that occurred during the first year of the COVID-19 pandemic among eleven neotropical primates housed at a primatology center in Brazil.

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A young male free-ranging giant anteater (Myrmecophaga tridactyla) was found with paralysis of pelvic limbs on a highway and kept under human care. Radiographs confirmed multiple incomplete fractures in the thoracolumbar vertebrae. Due to the poor prognosis, euthanasia was chosen.

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Article Synopsis
  • - A new strain of Toxoplasma gondii, named TgBgHmBrRJ1, was isolated from various tissues of a captive black-and-gold howler monkey in Brazil.
  • - The strain displayed high virulence in infected mice and was categorized as having a non-archetypal genotype, similar to other strains in the region, indicating widespread circulation.
  • - Notably, this is only the second report of Toxoplasma infection in neotropical primates in Brazil, despite numerous cases of clinical toxoplasmosis documented in these animals.
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Article Synopsis
  • A 10-year-old black howler monkey exhibited a 36-day period of symptoms including fever, lethargy, loss of appetite, slow digestion, and weight loss.
  • Treatment involved the use of trimethoprim-sulfamethoxazole in combination with streptomycin.
  • Diagnosis was confirmed through the isolation of Toxoplasma gondii and PCR testing, with additional support from indirect fluorescent antibody tests showing increased antibody levels.
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Primary female reproductive neoplasms in Platyrrhines species are few reported. We present the gross, histological, and immunohistochemical findings of metastatic endometrioid carcinoma in the uterus, urinary bladder, jejunum, and rectum of a Leontopithecus sp. The neoplastic endometrial cells expressed strong cytoplasmic immunolabeling of cytokeratin 7.

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Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiological agent of the disease coronavirus 2019 (COVID-19) in humans. SARS-CoV-2 has been identified in cats with or without clinical signs.

Case Presentation: We describe the pathological and molecular findings in a six-month-old asymptomatic cat with SARS-CoV-2 infection from Brazil, belonging to a human family with COVID-19 cases.

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Reports of spontaneous hematopoietic neoplasms in Platyrrhines species are scarce. We present the gross, histological, and immunohistochemical findings of disseminated T-cell lymphoma in a male 25-year-old Sapajus xanthosternos kept in a Brazilian conservation center. No molecular evidence of betaherpesvirus or gammaherpesvirus was associated with the occurrence of this neoplasm.

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