Evidence map›Paper›PMID 26813657›Full record

ArticleParasites & vectors2016

Vector-borne transmission of Trypanosoma cruzi among captive Neotropical primates in a Brazilian zoo.

Thaís Tâmara Castro Minuzzi-Souza, Nadjar Nitz, Monique Britto Knox, Filipe Reis, Luciana Hagström, César A Cuba Cuba, Mariana Machado Hecht, Rodrigo Gurgel-Gonçalves

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 27 citations in OpenAlex.

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  4. Molecular detection ofFrontiers in veterinary science · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Thaís Tâmara Castro Minuzzi-SouzaLaboratório de Parasitologia Médica e Biologia de Vetores, Área de Patologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, 70910-900, Distrito Federal, Brazil. thaistam@yahoo.com.br.
Nadjar NitzLaboratório Interdisciplinar de Biociências, Faculdade de Medicina, Universidade de Brasília, Brasília, Federal District, Brazil. nnitz@unb.br.
Monique Britto KnoxDiretoria de Vigilância Ambiental do Distrito Federal, Secretaria de Saúde, Brasília, Federal District, Brazil. monaknox@gmail.com.
Filipe ReisFundação Jardim Zoológico de Brasília, Brasília, Federal District, Brazil. filipereisbio@gmail.com.
Luciana HagströmLaboratório Interdisciplinar de Biociências, Faculdade de Medicina, Universidade de Brasília, Brasília, Federal District, Brazil. loubex@hotmail.com.
César A Cuba CubaLaboratório de Parasitologia Médica e Biologia de Vetores, Área de Patologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, 70910-900, Distrito Federal, Brazil. cesarcuba@hotmail.com.
Mariana Machado HechtLaboratório Interdisciplinar de Biociências, Faculdade de Medicina, Universidade de Brasília, Brasília, Federal District, Brazil. marianahecht@gmail.com.
Rodrigo Gurgel-GonçalvesLaboratório de Parasitologia Médica e Biologia de Vetores, Área de Patologia, Faculdade de Medicina, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Asa Norte, Brasília, 70910-900, Distrito Federal, Brazil. gurgelrg@hotmail.com.
Universidade de Brasília · BRFundo Brasil · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeotropical primates are important sylvatic hosts of Trypanosoma cruzi, the etiological agent of Chagas disease. Infection is often subclinical, but severe disease has been described in both free-ranging and captive primates. Panstrongylus megistus, a major T. cruzi vector, was found infesting a small-primate unit at Brasília zoo (ZooB), Brazil. ZooB lies close to a gallery-forest patch where T. cruzi circulates naturally. Here, we combine parasitological and molecular methods to investigate a focus of T. cruzi infection involving triatomine bugs and Neotropical primates at a zoo located in the Brazilian Savannah.

methodsWe assessed T. cruzi infection in vectors using optical microscopy (n = 34) and nested PCR (n = 50). We used quantitative PCR (qPCR) to examine blood samples from 26 primates and necropsy samples from two primates that died during the study. We determined parasite lineages in five vectors and two primates by comparing glucose-6-phosphate isomerase (G6pi) gene sequences.

resultsTrypanosoma cruzi was found in 44 vectors and 17 primates (six genera and eight species); one Mico chrysoleucus and one Saguinus niger had high parasitaemias. Trypanosoma cruzi DNA was detected in three primates born to qPCR-negative mothers at ZooB and in the two dead specimens. One Callithrix geoffroyi became qPCR-positive over a two-year follow-up. All G6pi sequences matched T. cruzi lineage TcI.

conclusionsOur findings strongly suggest vector-borne T. cruzi transmission within a small-primate unit at ZooB - with vectors, and perhaps also parasites, presumably coming from nearby gallery forest. Periodic checks for vectors and parasites would help eliminate T. cruzi transmission foci in captive-animal facilities. This should be of special importance for captive-breeding programs involving endangered mammals, and would reduce the risk of accidental T. cruzi transmission to keepers and veterinarians.

Indexed as

AnimalsAnimals, ZooBase SequenceBrazilChagas DiseaseFemaleGlucose-6-Phosphate IsomeraseInsect VectorsMaleMolecular Sequence DataPanstrongylusPolymerase Chain ReactionPrimatesProtozoan ProteinsSequence Analysis, DNATrypanosoma cruziGlucose-6-Phosphate IsomeraseProtozoan Proteins

Identifiers

PMID26813657
PMCPMC4727406
OpenAlexW2260265071

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.