Evidence map›Paper›PMID 28002469›Full record

ArticlePloS one2016

Phylodynamic and Phylogeographic Profiles of Subtype B HIV-1 Epidemics in South Spain.

Santiago Pérez-Parra, Natalia Chueca, Marta Álvarez, Juan Pasquau, Mohamed Omar, Antonio Collado, David Vinuesa, Ana B Lozano, Gonzalo Yebra, Federico García

Abstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
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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

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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

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

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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

10 authors.

Santiago Pérez-ParraServicio de Microbiología Clínica, Hospital Universitario San Cecilio, Complejo Hospitalario e Instituto de Investigación IBS, Granada, Spain.
Natalia ChuecaServicio de Microbiología Clínica, Hospital Universitario San Cecilio, Complejo Hospitalario e Instituto de Investigación IBS, Granada, Spain.
Marta ÁlvarezServicio de Microbiología Clínica, Hospital Universitario San Cecilio, Complejo Hospitalario e Instituto de Investigación IBS, Granada, Spain.
Juan PasquauServicio de Infecciosas, Hospital Virgen de las Nieves, Granada, Spain.
Mohamed OmarServicio de Infecciosas, Hospital Ciudad de Jaén, Jaén, Spain.
Antonio ColladoServicio de Medicina Interna, Hospital de Torrecárdenas, Almería, Spain.
David VinuesaServicio de Infecciosas, Hospital Universitario San Cecilio, Granada, Spain.
Ana B LozanoServicio de Infecciosas, Hospital de Poniente, Almería, Spain.
Gonzalo YebraInstitute of Evolutionary Biology, University of Edinburgh, Edinburgh, United Kingdom.
Federico GarcíaServicio de Microbiología Clínica, Hospital Universitario San Cecilio, Complejo Hospitalario e Instituto de Investigación IBS, Granada, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSince 1982, HIV-1 epidemics have evolved to different scenarios in terms of transmission routes, subtype distribution and characteristics of transmission clusters. We investigated the evolutionary history of HIV-1 subtype B in south Spain. PATIENTS &

methodsWe studied all newly diagnosed HIV-1 subtype B patients in East Andalusia during the 2005-2012 period. For the analysis, we used the reverse transcriptase and protease sequences from baseline resistance, and the Trugene® HIV Genotyping kit (Siemens, Barcelona, Spain). Subtyping was done with REGA v3.0. The maximum likelihood trees constructed with RAxML were used to study HIV-1 clustering. Phylogeographic and phylodynamic profiles were studied by Bayesian inference methods with BEAST v1.7.5 and SPREAD v1.0.6.

resultsOf the 493 patients infected with HIV-1 subtype B, 234 grouped into 55 clusters, most of which were small (44 clusters ≤ 5 patients, 31 with 2 patients, 13 with 3). The rest (133/234) were grouped into 11 clusters with ≥ 5 patients, and most (82%, 109/133) were men who have sex with men (MSM) grouped into 8 clusters. The association with clusters was more frequent in Spanish (p = 0.02) men (p< 0.001), MSM (p<0.001) younger than 35 years (p = 0.001) and with a CD4+ T-cell count above 350 cells/ul (p<0.001). We estimated the date of HIV-1 subtype B regional epidemic diversification around 1970 (95% CI: 1965-1987), with an evolutionary rate of 2.4 (95%CI: 1.7-3.1) x 10-3 substitutions/site/year. Most clusters originated in the 1990s in MSMs. We observed exponential subtype B HIV-1 growth in 1980-1990 and 2005-2008. The most significant migration routes for subtype B went from inland cities to seaside locations.

conclusionsWe provide the first data on the phylodynamic and phylogeographic profiles of HIV-1 subtype B in south Spain. Our findings of transmission clustering among MSMs should alert healthcare managers to enhance preventive measures in this risk group in order to prevent future outbreaks.

Indexed as

AdultBayes TheoremCD4 Lymphocyte CountCD4-Positive T-LymphocytesDemographyFemaleGenotypeHIV-1HIV InfectionsHomosexuality, MaleHumansLikelihood FunctionsMaleMiddle AgedPhylogenypol Gene Products, Human Immunodeficiency Viruspol Gene Products, Human Immunodeficiency Virus

Identifiers

PMID28002469
PMCPMC5176287

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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.