Evidence map›Paper›PMID 11044094›Full record

ArticleJournal of virology2000

Unprecedented degree of human immunodeficiency virus type 1 (HIV-1) group M genetic diversity in the Democratic Republic of Congo suggests that the HIV-1 pandemic originated in Central Africa.

N Vidal, M Peeters, C Mulanga-Kabeya, N Nzilambi, D Robertson, W Ilunga, H Sema, K Tshimanga, B Bongo, E Delaporte

Abstract read
In one paragraph

Article in Journal of virology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed, 2 pooled it
–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

99 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
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  7. Article
  8. HIV and Drug-Resistant Subtypes.Microorganisms · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. A near full-length HIV-1 genome from 1966 recovered from formalin-fixed paraffin-embedded tissue.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Brief Report: Complete Genome Sequence of CG-0018a-01 Establishes HIV-1 Subtype L.Journal of acquired immune deficiency syndromes (1999) · 2020
    Article
  14. Article
  15. Article
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  20. Article

39 more citing papers are in PubMed but not listed here.

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

10 authors.

N VidalLaboratoire Retrovirus, IRD, Montpellier, France.
M Peeters
C Mulanga-Kabeya
N Nzilambi
D Robertson
W Ilunga
H Sema
K Tshimanga
B Bongo
E Delaporte

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to document the genetic diversity of human immunodeficiency virus type 1 (HIV-1) in the Democratic Republic of Congo (DRC; formerly Zaire). A total of 247 HIV-1-positive samples, collected during an epidemiologic survey conducted in 1997 in three regions (Kinshasa [the capital], Bwamanda [in the north], and Mbuyi-Maya [in the south]), were genetically characterized in the env V3-V5 region. All known subtypes were found to cocirculate, and for 6% of the samples the subtype could not be identified. Subtype A is predominant, with prevalences decreasing from north to south (69% in the north, 53% in the capital city, and 46% in the south). Subtype C, D, G, and H prevalences range from 7 to 9%, whereas subtype F, J, K, and CRF01-AE strains represent 2 to 4% of the samples; only one subtype B strain was identified. The highest prevalence (25%) of subtype C was in the south, and CRF01-AE was seen mainly in the north. The high intersubtype variability among the V3-V5 sequences is the most probable reason for the low (45%) efficiency of subtype A-specific PCR and HMA (heteroduplex mobility assay). Eighteen (29%) of 62 samples had discordant subtype designations between env and gag. Sequence analysis of the entire envelope from 13 samples confirmed the high degree of diversity and complexity of HIV-1 strains in the DRC; 9 had a complex recombinant structure in gp160, involving fragments of known and unknown subtypes. Interestingly, the unknown fragments from the different strains did not cluster together. Overall, the high number of HIV-1 subtypes cocirculating, the high intrasubtype diversity, and the high numbers of possible recombinant viruses as well as different unclassified strains are all in agreement with an old and mature epidemic in the DRC, suggesting that this region is the epicenter of HIV-1 group M.

Indexed as

Genetic VariationAfrica, CentralDemocratic Republic of the CongoDNA, ViralGene Products, envHeteroduplex AnalysisHIV-1HIV Core Protein p24HIV Envelope Protein gp120HIV InfectionsHumansMolecular Sequence DataPeptide FragmentsPhylogenyPolymerase Chain ReactionSequence Analysis, DNADNA, ViralGene Products, envHIV Core Protein p24HIV Envelope Protein gp120HIV envelope protein gp120 (305-321)Peptide Fragments

Identifiers

PMID11044094
PMCPMC110924

What OpenQuestion holds

Textmetadata
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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.