Evidence map›Paper›PMID 40911094›Full record

ArticleVeterinary research communications2025

Ectoparasites of opossum's (Didelphimorphia: Didelphidae) captured in an urban complex in the Northern Brazilian amazon: new hosts and research on hemotropic bacteria.

Darlison Chagas-de-Souza, Claúdia Regina Silva, Ricardo Bassini-Silva, Tássio Alves-Coêlho, Lourdes Marina Bezerra Pessoa, Fernando de Castro Jacinavicius, Marcelo Bahia Labruna, Lúcio André Viana

Erratum issuedAbstract read
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In one paragraph

Article in Veterinary research communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Darlison Chagas-de-SouzaLaboratório de Estudos Morfofisiológicos e Parasitários, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Josmar Chaves Pinto km 02k, s/n, Jardim Marco Zero, Macapá, CEP 68903-419, AP, Brazil.ORCID http://orcid.org/0000-0002-7610-9665
Claúdia Regina SilvaLaboratório de Mastozoologia, Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá, Macapá, AP, Brazil.ORCID https://orcid.org/0000-0002-3280-0235
Ricardo Bassini-SilvaLaboratório de Coleções Zoológicas, Instituto Butantan, São Paulo, SP, Brazil.ORCID http://orcid.org/0000-0002-9568-4120
Tássio Alves-CoêlhoLaboratório de Estudos Morfofisiológicos e Parasitários, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Josmar Chaves Pinto km 02k, s/n, Jardim Marco Zero, Macapá, CEP 68903-419, AP, Brazil. coelho.tassio@gmail.com.ORCID http://orcid.org/0000-0002-0264-4526
Lourdes Marina Bezerra PessoaLaboratório de Estudos Morfofisiológicos e Parasitários, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Josmar Chaves Pinto km 02k, s/n, Jardim Marco Zero, Macapá, CEP 68903-419, AP, Brazil.ORCID http://orcid.org/0000-0001-5179-2894
Fernando de Castro JacinaviciusDepartamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil.ORCID http://orcid.org/0000-0002-5503-3120
Marcelo Bahia LabrunaDepartamento de Medicina Veterinária Preventiva e Saúde Animal, FMVZ-USP, São Paulo, SP, Brazil.ORCID http://orcid.org/0000-0002-9675-3132
Lúcio André VianaLaboratório de Estudos Morfofisiológicos e Parasitários, Departamento de Ciências Biológicas e da Saúde, Universidade Federal do Amapá, Rodovia Josmar Chaves Pinto km 02k, s/n, Jardim Marco Zero, Macapá, CEP 68903-419, AP, Brazil.ORCID http://orcid.org/0000-0002-0932-0479

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ) 402575/2021-0Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.598663/2021-00Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.636892/2021-00Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.636899/2021-00Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 2019/19853-0Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) 2020/11755-6
6 · The paper itself

Abstract

Ticks and mites are important ectoparasites that affect animal and human health, directly causing harm and acting as vectors of pathogens. This study investigated the ectoparasites of synanthropic didelphids marsupials in northern Amazonia, Brazil, and screened them for hemotropic bacteria. The study was carried out in October 2022 in the metropolitan region of Macapá, Amapá State, Brazil, in vegetation remnants characterized by terra firme rainforest, alluvial forest, and savanna. Sampling was conducted over 12 consecutive days using live traps (Tomahawk and Shanon) and pitfall traps for capturing small wild mammals. The ectoparasites were removed using tweezers. A fraction of the collected ectoparasites was separated for DNA extraction and subsequent PCR amplification, and an aliquot of the extracted DNA was used for pathogen molecular tests, including bacteria and protozoa. A total of 26 larvae of Amblyomma dissimile, 17 nymphs of Amblyomma humerale, and more than 20 larvae of Eutrombicula goeldii were analyzed. Molecular identification confirmed the identity of A. dissimile and A. humerale, with new host records for Didelphis imperfecta and Didelphis marsupialis, respectively. The 16 S rRNA gene amplified successfully for 38.5% of A. dissimile larvae and all A. humerale nymphs, while the 18 S rRNA gene failed for chiggers. Pathogen screening yielded negative results. These findings contribute to the knowledge of host-parasite interactions and highlight the need for further surveillance of potential zoonotic agents in ectoparasites from wildlife.

Indexed as

DidelphisMite InfestationsOpossumsTick InfestationsAmblyommaAnimalsBrazilIxodidaeLarvaMitesNymphAmblyommaBrazilian amazonDidelphidaeEutrombiculaOne healthPathogen screening

Identifiers

PMID40911094

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.