Evidence map›Paper›PMID 32949700›Full record

ArticleTravel medicine and infectious disease

In-flight transmission of COVID-19 on flights to Greece: An epidemiological analysis.

Androula Pavli, Paraskevi Smeti, Sophia Hadjianastasiou, Kalliopi Theodoridou, Athina Spilioti, Kalliopi Papadima, Anastasia Andreopoulou, Kassiani Gkolfinopoulou, Spyros Sapounas, Nikolaos Spanakis and 2 more

Open access · greenAbstract read
In one paragraph

Article in Travel medicine and infectious disease. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 5 pooled it
1.5field-weighted citation impact, top 12% 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

29 citing papers in PubMed, 5 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. The Risk of Aircraft-Acquired SARS-CoV-2 Transmission during Commercial Flights: A Systematic Review.International journal of environmental research and public health · 2024
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  5. Asymptomatic SARS-CoV-2 infection: A systematic review and meta-analysis.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  10. Risk of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Transmission Among Air Passengers in China.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
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  15. Attack Rate for Wild-Type SARS-CoV-2 during Air Travel: Results from 46 Flights Traced by German Health Authorities, January-March and June-August 2020.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 1 country.

Androula PavliDepartment of Travel Medicine, National Public Health Organization, Athens, Greece.
Paraskevi SmetiDepartment of Travel Medicine, National Public Health Organization, Athens, Greece.
Sophia HadjianastasiouDepartment of Travel Medicine, National Public Health Organization, Athens, Greece.
Kalliopi TheodoridouDepartment of Microbiology, Andreas Sygros Hospital, National and Kapodistrian University of Athens, Αthens, Greece.
Athina SpiliotiDepartment of Travel Medicine, National Public Health Organization, Athens, Greece.
Kalliopi PapadimaDepartment of Respiratory Diseases, Directorate of Epidemiological Surveillance and Interventions for Infectious Diseases, National Public Health Organization, Athens, Greece.
Anastasia AndreopoulouDepartment of Respiratory Diseases, Directorate of Epidemiological Surveillance and Interventions for Infectious Diseases, National Public Health Organization, Athens, Greece.
Kassiani GkolfinopoulouDepartment of Surveillance Systems, Directorate of Epidemiological Surveillance and Interventions for Infectious Diseases, National Public Health Organization, Athens, Greece.
Spyros SapounasDirectorate of Preparedness and Response, National Public Health Organization, Athens, Greece.
Nikolaos SpanakisDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, Greece.
Athanasios TsakrisDepartment of Microbiology, Medical School, National and Kapodistrian University of Athens, Greece.
Helena C MaltezouDepartment of Research, Studies and Documentation, National Public Health Organization, 3-5 Agrafon Street, Athens, 15123, Greece. Electronic address: helen-maltezou@ath.forthnet.gr.
National Public Health Organization · GRNational and Kapodistrian University of Athens · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe emergence in China in late 2019 and subsequent progression of a pandemic of a respiratory disease named coronavirus disease 2019 (COVID-19) was highly facilitated by international travel. We present 5 cases of probable in-flight transmission in Greece.

methodsWe studied international passengers arriving to or departing from Greece from February 26 through March 9, 2020. Contact tracing extended up to 4 days before the onset of symptoms and focused on close contacts. Close contacts were defined as persons sitting within a distance of <2 m for >15 min, including passengers seated two seats around the index case and all crew members and persons who had close contact with the index case.

resultsWe investigated 18 international flights with 2224 passengers and 110 crew members. Main countries of departure included Northern Italy, Israel and the United Kingdom. In accordance with the national surveillance investigation, in these flights there were 21 index cases and 891 contact traced cases. Six index cases were symptomatic during the flight. Of the 891 contact traced cases, 4 passengers and 1 crew member developed laboratory-confirmed infection (3 with COVID-19 and 2 with asymptomatic infection); they travelled on the same flight with two COVID-19 cases.

conclusionsAir travel has played a central role in the progression of the COVID-19 pandemic. However, there are scarce data about in-flight transmission. Our extensive investigation showed five cases of probable in-flight transmission. Efforts should be placed in order to ensure the prompt implementation of appropriate infection control measures on board.

Indexed as

Air TravelSARS-CoV-2Contact TracingCOVID-19Epidemiologic StudiesGreeceHumansAircraftContact tracingCOVID-19In-flightPandemicSARS-CoV-2TransmissionTravel

Identifiers

PMID32949700
PMCPMC7494513
OpenAlexW3085490224

What OpenQuestion holds

Textmetadata
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.