Evidence map›Paper›PMID 34425938›Full record

ArticleeLife2021

Superspreaders drive the largest outbreaks of hospital onset COVID-19 infections.

Christopher Jr Illingworth, William L Hamilton, Ben Warne, Matthew Routledge, Ashley Popay, Chris Jackson, Tom Fieldman, Luke W Meredith, Charlotte J Houldcroft, Myra Hosmillo and 30 more

Abstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 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

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

  1. Pooled it
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  4. Review
  5. Superspreading and the evolution of virulence.PLoS computational biology · 2025
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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

40 authors.

Christopher Jr Illingworth *MRC Biostatistics Unit, University of Cambridge, East Forvie Building, Forvie Site, Robinson Way, Cambridge, United Kingdom.ORCID https://orcid.org/0000-0002-0030-2784
William L Hamilton *University of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-3330-353X
Ben WarneUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Matthew RoutledgeCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Ashley PopayPublic Health England Field Epidemiology Unit, Cambridge Institute of Public Health, Forvie Site, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Chris JacksonMRC Biostatistics Unit, University of Cambridge, East Forvie Building, Forvie Site, Robinson Way, Cambridge, United Kingdom.
Tom FieldmanUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Luke W MeredithUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Charlotte J HouldcroftUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-1833-5285
Myra HosmilloUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-3514-7681
Aminu S JahunUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-4585-1701
Laura G CallerUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Sarah L CaddyCambridge Institute for Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-9790-7420
Anna YakovlevaUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Grant HallUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0003-3928-3979
Fahad A KhokharUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Theresa FeltwellUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Malte L PinckertUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Iliana GeorganaUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-8976-1177
Yasmin ChaudhryUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Martin D CurranPublic Health England Clinical Microbiology and Public Health Laboratory, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Surendra ParmarPublic Health England Clinical Microbiology and Public Health Laboratory, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Dominic SparkesCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Lucy RivettCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-2781-9345
Nick K JonesCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0003-4475-7761
Sushmita SridharUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0001-7453-7482
Sally ForrestCambridge Institute for Therapeutic Immunology and Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge, United Kingdom.
Tom DymondCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Kayleigh GraingerCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Chris WorkmanCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Mark FerrisCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID https://orcid.org/0000-0001-5040-4263
Effrossyni Gkrania-KlotsasCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-0930-8330
Nicholas M BrownCambridge University Hospitals NHS Foundation Trust, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-6657-300X
Michael P WeekesUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0003-3196-5545
Stephen BakerUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0003-1308-5755
Sharon J PeacockUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-1718-2782
Ian G GoodfellowUniversity of Cambridge, Department of Pathology, Division of Virology, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID http://orcid.org/0000-0002-9483-510X
Theodore GouliourisUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.
Daniela de AngelisInstitut für Biologische Physik, Universität zu Köln, Köln, Germany.
M Estée TörökUniversity of Cambridge, Department of Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom.ORCID https://orcid.org/0000-0001-9098-8590

Funding

Deutsche Forschungsgemeinschaft SFB 1310Medical Research Council G0701652Medical Research Council MC_PC_19026Medical Research Council MC_UU_00002/11Medical Research Council MC_UU_12014/12Medical Research Council MR/N029399/1Wellcome Trust 097997/Z/11/ZWellcome Trust 108070/Z/15/ZWellcome Trust 204870/Z/16/ZWellcome Trust 215515/Z/19/Z
6 · The paper itself

Abstract

SARS-CoV-2 is notable both for its rapid spread, and for the heterogeneity of its patterns of transmission, with multiple published incidences of superspreading behaviour. Here, we applied a novel network reconstruction algorithm to infer patterns of viral transmission occurring between patients and health care workers (HCWs) in the largest clusters of COVID-19 infection identified during the first wave of the epidemic at Cambridge University Hospitals NHS Foundation Trust, UK. Based upon dates of individuals reporting symptoms, recorded individual locations, and viral genome sequence data, we show an uneven pattern of transmission between individuals, with patients being much more likely to be infected by other patients than by HCWs. Further, the data were consistent with a pattern of superspreading, whereby 21% of individuals caused 80% of transmission events. Our study provides a detailed retrospective analysis of nosocomial SARS-CoV-2 transmission, and sheds light on the need for intensive and pervasive infection control procedures.

Indexed as

COVID-19Cross InfectionDisease OutbreaksSARS-CoV-2Health PersonnelHumansRetrospective StudiesUnited Kingdomevolutionary biologyhospitalinfectious diseasemicrobiologynosocomial transmissionSARS-CoV-2superspreadervirus

Identifiers

PMID34425938
PMCPMC8384420

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.