Evidence map›Paper›PMID 34663570›Full record

ArticleBritish journal of sports medicine2022

Risk of SARS-CoV-2 transmission from on-field player contacts in amateur, youth and professional football (soccer).

Sebastian Schreiber, Oliver Faude, Barbara Gärtner, Tim Meyer, Florian Egger

Open access · hybridAbstract read
In one paragraph

Article in British journal of sports medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Common Sports Infectious Disease.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2023
    Review
  6. Article
  7. Observational
  8. Injury Incidence Increases after COVID-19 Infection: A Case Study with a Male Professional Football Team.International journal of environmental research and public health · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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

5 authors at 3 institutions in 2 countries.

Sebastian SchreiberInstitute of Sports and Preventive Medicine, Saarland University, Saarbrucken, Germany s8seschr@stud.uni-saarland.de.ORCID http://orcid.org/0000-0002-5665-6127
Oliver FaudeDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Barbara GärtnerInstitute of Medical Microbiology and Hygiene, Universitatsklinikum des Saarlandes und Medizinische Fakultat der Universitat des Saarlandes, Homburg, Germany.
Tim MeyerInstitute of Sports and Preventive Medicine, Saarland University, Saarbrucken, Germany.ORCID http://orcid.org/0000-0003-3425-4546
Florian EggerInstitute of Sports and Preventive Medicine, Saarland University, Saarbrucken, Germany.ORCID http://orcid.org/0000-0001-5750-2202
Saarland University · DEUniversitätsklinikum des Saarlandes · DEUniversity of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the risk of transmission among potentially infectious SARS-CoV-2-positive football players while participating in training or matches at amateur, youth and professional levels.

methodsBetween August 2020 and March 2021, football players who tested positive for SARS-CoV-2 and participated in matches or training during the period of potential contagiousness were identified through media search (professional level) and a nationwide registry in Germany (amateur and youth level) to determine symptoms, source of infection and hygiene measures adopted. The definition of potentially infectious players was based on the time of a positive PCR testing and symptom onset. Transmission-relevant contacts on the pitch were evaluated through doubly reviewed video analysis.

resultsOut of 1247 identified football matches and training sessions (1071 amateur and youth level, 176 professional level), 104 cases (38 training sessions, 66 matches) with 165 potentially infectious players were detected. Follow-up PCR testing at the professional level (44 cases) revealed no transmission. At the amateur and youth level, the combination of partial PCR testing (31 of 60 cases) and symptom monitoring within 14 days post-exposure (46 of 60 cases) identified 2 of 60 matches in which follow-up infections occurred that were attributed to non-football activities. This is consistent with the video analysis of 21 matches demonstrating frontal contacts were <1 per player-hour (88%, 30 of 34 players), each lasting no longer than 3 s.

conclusionOn-field transmission risk of SARS-CoV-2 in football is very low. Sources of infections in football players are most likely not related to activities on the pitch.

Indexed as

COVID-19SoccerAdolescentAthletesHumansSARS-CoV-2COVID-19footballinfectionpreventive medicinesoccer

Identifiers

PMID34663570
PMCPMC8526192
OpenAlexW3206273840

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.