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Updated: Jun 20, 2026
3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii
Published on: December 9, 2014
Molecular detection of Toxoplasma gondii and Neospora caninum in neotropical primates
Stéfhano Luís Cândido1, Maria Julia de Oliveira Rosa Fonseca2, Richard de Campos Pacheco3
1Laboratory of Veterinary Microbiology and Molecular Biology, Veterinary Hospital - HOVET, Faculty of Veterinary Medicine - FAVET, Federal University of Mato Grosso - UFMT, Cuiabá, Brazil.
Background:
Toxoplasma gondii and Neospora caninum infections in primates are potentially fatal and directly impact the conservation of these animals and public health.
Materials And Methods:
A total of 38 blood/clot samples collected from free-living and captive neotropical primates undergoing clinical care or found dead by environmental authorities in the Mato Grosso State, Brazil, were analyzed by PCR for DNA detection of T. gondii and N. caninum. Furthermore, eight animals were submitted to immunohistochemistry for the detection of T. gondii.
Results:
DNA of T. gondii and N. caninum was amplified in 11 (28.95%) 10 (26.32%) of samples analyzed, respectively. Coinfection was observed in three individuals. One animal returned a positive result in the immunohistochemistry for the detection of T. gondii.
Conclusion:
These findings reflect a concern for the conservation of these animals, as the pathogen-host interaction is unpredictable and infections by these protozoa can lead to animal mortality, which has a substantial impact on endangered species.
