Evidence map›Paper›PMID 39459860›Full record

ArticleViruses2024

Intrafamilial Transmission of HTLV-1 and HTLV-2 in Indigenous Peoples of the Brazilian Amazon: Molecular Characterization and Phylogenetic Analysis.

Isabella Nogueira Abreu, Felipe Bonfim Freitas, Eliene Rodrigues Putira Sacuena, Gabriel Dos Santos Pereira Neto, Bruno José Sarmento Botelho, Carlos Neandro Cordeiro Lima, Vanessa de Oliveira Freitas, Mike Barbosa Dos Santos, Sandra Souza Lima, Ricardo Ishak and 3 more

Abstract read
In one paragraph

Article in Viruses, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

13 authors.

Isabella Nogueira AbreuLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.
Felipe Bonfim FreitasSeção de Virologia, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil.ORCID 0000-0002-4325-3695
Eliene Rodrigues Putira SacuenaLaboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém 66075-110, Brazil.
Gabriel Dos Santos Pereira NetoLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.ORCID 0000-0002-7825-9384
Bruno José Sarmento BotelhoLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.ORCID 0000-0001-9341-9350
Carlos Neandro Cordeiro LimaLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.
Vanessa de Oliveira FreitasLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.
Mike Barbosa Dos SantosSeção de Arbovirologia e Febres Hemorrágicas, Instituto Evandro Chagas, Ananindeua 67030-000, Brazil.
Sandra Souza LimaLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.ORCID 0000-0001-5137-7770
Ricardo IshakLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.
João Farias GuerreiroLaboratório de Genética Humana e Médica, Universidade Federal do Pará, Belém 66075-110, Brazil.
Antonio Carlos Rosário VallinotoLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.ORCID 0000-0003-1135-6507
Izaura Maria Cayres VallinotoLaboratório de Virologia, Universidade Federal do Pará, Belém 66075-110, Brazil.

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 442522/2019-3; 302935/2021-5, and 402412/2021-4Instituto Nacional de Ciência e Tecnologia em Viroses Emergentes e Reemergentes - INCT-VER #406360/2022-7
6 · The paper itself

Abstract

Human T-limphotropic virus 1 infection has a global distribution, with a high prevalence in some regions of Brazil and the world, while HTLV-2 infection is endemic mainly among indigenous people and drug users. To analyze intrafamilial transmission of HTLV-1/2 in five Kayapó indigenous peoples (Gorotire, Kararaô, Kokraimoro, Kubenkokre, and Xikrin do Bacajá), we investigated 1452 individuals who underwent serological and molecular tests. Among the 276 indigenous people with positive results, we identified intrafamily transmission in 42.7% of cases, representing 38 families. It was possible to suggest horizontal and vertical transmissions in 15.8% (6/38) and 47.4% (18/38) of the family groups, respectively. In 15.8%, it was not possible to suggest the route, which indicated that the transmission may have occurred through both vertical and horizontal routes. Through phylogenetic analyses, 35 samples positive for HTLV-2 were sequenced and classified as subtype 2c, and the two samples that tested positive for HTLV-1 were shown to belong to the cosmopolitan subtype, transcontinental subgroup (HTLV-1aA). This study confirms the intrafamilial transmission of HTLV-1/2 infection in indigenous people of the Brazilian Amazon, highlighting the importance of the sexual and mother-to-child transmission routes in maintaining the virus in these people.

Indexed as

HTLV-II InfectionsHTLV-I InfectionsHuman T-lymphotropic virus 1Human T-lymphotropic virus 2Indigenous PeoplesPhylogenyAdolescentAdultAgedBrazilChildChild, PreschoolFemaleHumansInfectious Disease Transmission, VerticalMaleBrazilian AmazonHTLVindigenous peopleintrafamily transmissionphylogeny

Identifiers

PMID39459860
PMCPMC11512210

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LicenceCC BY
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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.