Evidence map›Paper›PMID 31455863›Full record

ArticleScientific reports2019

Deformed wing virus type A, a major honey bee pathogen, is vectored by the mite Varroa destructor in a non-propagative manner.

Francisco Posada-Florez, Anna K Childers, Matthew C Heerman, Noble I Egekwu, Steven C Cook, Yanping Chen, Jay D Evans, Eugene V Ryabov

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing 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

70 citing papers in PubMed.

  1. Unravelling the Interplay BetweenEvolutionary applications · 2026
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  4. Seasonal dynamics of honey bee pathogens andFrontiers in insect science · 2026
    Article
  5. Comprehensive virome analysis ofFrontiers in insect science · 2026
    Article
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  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
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  15. Article
  16. Article
  17. Article
  18. Shift in virus composition in honeybees (Royal Society open science · 2024
    Article
  19. Article
  20. Article

10 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

8 authors.

Francisco Posada-FlorezUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA. Francisco.Posada@ars.usda.gov.
Anna K ChildersUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.ORCID http://orcid.org/0000-0002-0747-8539
Matthew C HeermanUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.
Noble I EgekwuUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.
Steven C CookUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.ORCID http://orcid.org/0000-0003-4927-1402
Yanping ChenUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.
Jay D EvansUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA.ORCID http://orcid.org/0000-0002-0036-4651
Eugene V RyabovUSDA, Agricultural Research Service, Bee Research Lab, Beltsville, MD, USA. Eugene.Ryabov@gmail.com.ORCID http://orcid.org/0000-0002-4265-9714

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Honey bees, the primary managed insect pollinator, suffer considerable losses due to Deformed wing virus (DWV), an RNA virus vectored by the mite Varroa destructor. Mite vectoring has resulted in the emergence of virulent DWV variants. The basis for such changes in DWV is poorly understood. Most importantly, it remains unclear whether replication of DWV occurs in the mite. In this study, we exposed Varroa mites to DWV type A via feeding on artificially infected honey bees. A significant, 357-fold increase in DWV load was observed in these mites after 2 days. However, after 8 additional days of passage on honey bee pupae with low viral loads, the DWV load dropped by 29-fold. This decrease significantly reduced the mites' ability to transmit DWV to honey bees. Notably, negative-strand DWV RNA, which could indicate viral replication, was detected only in mites collected from pupae with high DWV levels but not in the passaged mites. We also found that Varroa mites contain honey bee mRNAs, consistent with the acquisition of honey bee cells which would additionally contain DWV replication complexes with negative-strand DWV RNA. We propose that transmission of DWV type A by Varroa mites occurs in a non-propagative manner.

Indexed as

BeesAnimalsArthropod VectorsRNA VirusesVarroidae

Identifiers

PMID31455863
PMCPMC6712216

What OpenQuestion holds

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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.