Publications by authors named "T A Pissinatti"
The gut microbiome reflects health and predicts possible disease in hosts. A holistic view of this community is needed, focusing on identifying species and dissecting how species interact with their host and each other, regardless of whether their presence is beneficial, inconsequential, or detrimental. The distribution of gut-associated eukaryotes within and across non-human primates is likely driven by host behavior and ecology.
View Article and Find Full Text PDFLessons from a Multilaboratorial Task Force for Diagnosis of a Fatal Toxoplasmosis Outbreak in Captive Primates in Brazil.
Microorganisms
November 2023
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.
View Article and Find Full Text PDFPulmonary Granuloma Is Not Always the Tuberculosis Hallmark: Pathology of Tuberculosis Stages in New World and Old World Monkeys Naturally Infected with the Mycobacterium tuberculosis Complex.
J Comp Pathol
November 2022
We present the pathology of monkeys naturally infected with Mycobacterium tuberculosis complex from five different colonies in Rio de Janeiro, Brazil. On the basis of gross and histopathological findings, the lesions were classified into chronic-active, extrapulmonary, early-activation or latent-reactivation stages. Typical granulomatous pneumonia was seen in 46.
View Article and Find Full Text PDFSubacute multisystemic toxoplasmosis in a captive black-and-gold howler monkey (Alouatta caraya) indicates therapy challenging.
J Med Primatol
December 2022
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.
Background: The taxonomic classification of squirrel monkeys is often controversial issue offering many different information. The classification of captive animals is difficult due to the phenotypic similarities between the presented species, which is observed mainly in coat coloration.
Methods: The objective of this study was to analyze the chromosome pattern of one squirrel monkey with off standard physical characteristics, which is kept in the Laboratory Animals Breeding Center in Rio de Janeiro State, Brazil, and try to establish some correlations.