Evidence map›Paper›PMID 34109041›Full record

ReviewRoyal Society open science2021

The roles of environmental variation and parasite survival in virulence-transmission relationships.

Wendy C Turner, Pauline L Kamath, Henriette van Heerden, Yen-Hua Huang, Zoe R Barandongo, Spencer A Bruce, Kyrre Kausrud

Abstract readReview
In one paragraph

Review in Royal Society open science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Article
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  8. Silent predators: Revealing the parasites of Himalayan musk deer (International journal for parasitology. Parasites and wildlife · 2025
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  9. Review
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  11. Review
  12. Article
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  19. Parasite infestations and infections of non-traditional pets and wild mammals: diagnosis and treatment.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024
    Article
  20. 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

7 authors.

Wendy C TurnerUS Geological Survey, Wisconsin Cooperative Wildlife Research Unit, Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, USA.ORCID 0000-0002-0302-1646
Pauline L KamathSchool of Food and Agriculture, University of Maine, Orono, ME 04469, USA.ORCID 0000-0002-6458-4514
Henriette van HeerdenFaculty of Veterinary Science, Department of Veterinary Tropical Diseases, University of Pretoria, Onderstepoort, South Africa.ORCID 0000-0002-3577-1273
Yen-Hua HuangDepartment of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, USA.ORCID 0000-0002-2961-0895
Zoe R BarandongoDepartment of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, USA.ORCID 0000-0001-6332-991X
Spencer A BruceDepartment of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA.ORCID 0000-0002-9423-8049
Kyrre KausrudSection for Epidemiology, Norwegian Veterinary Institute, Ullevålsveien 68, 0454 Oslo, Norway.ORCID 0000-0002-2738-7351

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Disease outbreaks are a consequence of interactions among the three components of a host-parasite system: the infectious agent, the host and the environment. While virulence and transmission are widely investigated, most studies of parasite life-history trade-offs are conducted with theoretical models or tractable experimental systems where transmission is standardized and the environment controlled. Yet, biotic and abiotic environmental factors can strongly affect disease dynamics, and ultimately, host-parasite coevolution. Here, we review research on how environmental context alters virulence-transmission relationships, focusing on the off-host portion of the parasite life cycle, and how variation in parasite survival affects the evolution of virulence and transmission. We review three inter-related 'approaches' that have dominated the study of the evolution of virulence and transmission for different host-parasite systems: (i) evolutionary trade-off theory, (ii) parasite local adaptation and (iii) parasite phylodynamics. These approaches consider the role of the environment in virulence and transmission evolution from different angles, which entail different advantages and potential biases. We suggest improvements to how to investigate virulence-transmission relationships, through conceptual and methodological developments and taking environmental context into consideration. By combining developments in life-history evolution, phylogenetics, adaptive dynamics and comparative genomics, we can improve our understanding of virulence-transmission relationships across a diversity of host-parasite systems that have eluded experimental study of parasite life history.

Indexed as

host–parasite relationshipsparasite survivalpropagule persistencetrade-off theorytransmissionvirulence evolution

Identifiers

PMID34109041
PMCPMC8170194

What OpenQuestion holds

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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.