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Comparison of five parasitological techniques for laboratory diagnosis of Balantidium coli cysts

Overview of attention for article published in Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria, August 2016
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Title
Comparison of five parasitological techniques for laboratory diagnosis of Balantidium coli cysts
Published in
Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria, August 2016
DOI 10.1590/s1984-29612016044
Pubmed ID
Authors

Alynne da Silva Barbosa, Otilio Machado Pereira Bastos, Claudia Maria Antunes Uchôa, Alcides Pissinatti, Augusto César Machado Pereira Bastos, Igo Vieira de Souza, Laís Verdan Dib, Eduarda Peixoto Azevedo, Mayara Perlingeiro de Siqueira, Matheus Lessa Cardozo, Maria Regina Reis Amendoeira

Abstract

Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for detecting cysts of this protozoon. Between 2012 and 2014, 1905 fecal samples were collected from captive animals in the state of Rio de Janeiro. Of these, 790 were obtained from the rectum of pigs and 1115 from enclosures occupied by nonhuman primates. B. coli cysts were most evident through direct examination (22.4% of the samples) and the Lutz technique (21%). Fair agreement (Kappa = 0.41; p < 0.05) was observed only between direct examination and Lutz. The flotation techniques (Faust and modified Sheather) did not show good recovery of cysts. A statistically significant difference (p < 0.05) in the frequency of cysts between pigs and nonhuman primates could only be observed through direct examination and the Lutz technique. The most efficient method for diagnosing this parasitosis was seen to an association between direct examination and the spontaneous sedimentation technique.

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Mendeley readers

The data shown below were compiled from readership statistics for 24 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 24 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 1 4%
Researcher 1 4%
Student > Doctoral Student 1 4%
Unknown 21 88%
Readers by discipline Count As %
Veterinary Science and Veterinary Medicine 2 8%
Immunology and Microbiology 1 4%
Unknown 21 88%