Evidence map›Paper›PMID 9225482›Full record

ArticleProceedings. Biological sciences1997

Mixed-genotype infections of malaria parasites: within-host dynamics and transmission success of competing clones.

L H Taylor, D Walliker, A F Read

Open access · greenAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 7% 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

45 citing papers in PubMed, 1 synthesis or guideline pooled it, 126 citations in OpenAlex.

  1. Pooled it
  2. Article
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  10. Competition Between Strains ofFrontiers in cellular and infection microbiology · 2019
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  11. Article
  12. Intra-host dynamics of co-infecting parasite genotypes in asymptomatic malaria patients.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2018
    Article
  13. Resource limitation prevents the emergence of drug resistance by intensifying within-host competition.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  14. Article
  15. Higher Complexity of Infection and Genetic Diversity ofThe American journal of tropical medicine and hygiene · 2017
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  16. Within-host competition between Borrelia afzelii ospC strains in wild hosts as revealed by massively parallel amplicon sequencing.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Article
  17. Article
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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

3 authors at 1 institution in 1 country.

L H TaylorInstitute of Cell, Animal and Population Biology, University of Edinburgh, UK.
D Walliker
A F Read
University of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mixed-genotype infections of microparasites are common, but almost nothing is known about how competitive interactions within hosts affect the subsequent transmission success of individual genotypes. We investigated changes in the composition of mixed-genotype infections of the rodent malaria Plasmodium chabaudi clones CR and ER by monoclonal antibody analysis of the asexual infection in mice, and by PCR amplification of clone-specific alleles in oocysts sampled from mosquitoes which had fed on these mice. Mixed-clone infections were initiated with a 9:1 ratio of the two clones, with ER as the minority in the first experiment and CR as the minority in the second experiment. When beginning as the majority, clones achieved parasite densities in mice comparable to those achieved in control (single-clone) infections. When they began as the minority, clones were suppressed to less than 10% of control parasitaemias during the early part of the infections. However, in mosquitoes, the frequency of the initially rare clone was substantially greater than it was in mice at the start of the infection or four days prior to the feed. In both experiments, the minority clone in the inocula produced as many, or more, oocysts than it did as a single-clone infection. These experiments show that asexual dominance during most of the infection is poorly correlated to transmission probability, and therefore that the assumption that within-host population size correlates to transmission probability may not be warranted. They also raise the fundamental question of why transmission rates of individual genotypes are often higher from mixed than single-clone infections.

Indexed as

AnimalsAntibodies, MonoclonalAntigens, ProtozoanDNA PrimersFertilizationHeterozygoteHomozygoteMalariaMiceMice, Inbred C57BLModels, TheoreticalParasitemiaPlasmodium chabaudiPolymerase Chain ReactionAntibodies, MonoclonalAntigens, ProtozoanDNA Primers

Identifiers

PMID9225482
PMCPMC1688430
OpenAlexW2001168626

What OpenQuestion holds

Textmetadata
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.