Evidence map›Paper›PMID 32527856›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Identifying airborne transmission as the dominant route for the spread of COVID-19.

Renyi Zhang, Yixin Li, Annie L Zhang, Yuan Wang, Mario J Molina

Erratum issuedAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 571 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
571citing papers in PubMed, 3 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

571 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Epidemiology of burn injuries in a Canadian population during the COVID-19 pandemic.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2026
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  20. Risk assessment of infection of COVID-19 contacts based on scenario simulation.Risk analysis : an official publication of the Society for Risk Analysis · 2025
    Article

511 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Renyi ZhangDepartment of Atmospheric Sciences, Texas A&M University, College Station, TX 77843; renyi-zhang@tamu.edu mjmolina@ucsd.edu.
Yixin LiDepartment of Chemistry, Texas A&M University, College Station, TX 77843.ORCID 0000-0001-7937-7385
Annie L ZhangDepartment of Chemistry, College of Natural Sciences, The University of Texas at Austin, Austin, TX 78712.
Yuan WangDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125.ORCID 0000-0001-6657-8401
Mario J MolinaDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093 renyi-zhang@tamu.edu mjmolina@ucsd.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various mitigation measures have been implemented to fight the coronavirus disease 2019 (COVID-19) pandemic, including widely adopted social distancing and mandated face covering. However, assessing the effectiveness of those intervention practices hinges on the understanding of virus transmission, which remains uncertain. Here we show that airborne transmission is highly virulent and represents the dominant route to spread the disease. By analyzing the trend and mitigation measures in Wuhan, China, Italy, and New York City, from January 23 to May 9, 2020, we illustrate that the impacts of mitigation measures are discernable from the trends of the pandemic. Our analysis reveals that the difference with and without mandated face covering represents the determinant in shaping the pandemic trends in the three epicenters. This protective measure alone significantly reduced the number of infections, that is, by over 78,000 in Italy from April 6 to May 9 and over 66,000 in New York City from April 17 to May 9. Other mitigation measures, such as social distancing implemented in the United States, are insufficient by themselves in protecting the public. We conclude that wearing of face masks in public corresponds to the most effective means to prevent interhuman transmission, and this inexpensive practice, in conjunction with simultaneous social distancing, quarantine, and contact tracing, represents the most likely fighting opportunity to stop the COVID-19 pandemic. Our work also highlights the fact that sound science is essential in decision-making for the current and future public health pandemics.

Indexed as

Coronavirus InfectionsCOVID-19Disease Transmission, InfectiousHumansInhalation ExposureMasksPandemicsPneumonia, ViralPrimary PreventionQuarantineRespiratory Protective DevicesUnited StatesaerosolCOVID-19pandemicpublic healthvirus

Identifiers

PMID32527856
PMCPMC7334447

What OpenQuestion 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 OpenQuestion graph.