Transmission of SARS-CoV-2 During Air Travel: A Descriptive and Modelling Study

Zhang, Jinjun; Qin, Fei; Li, Jianren; Tian, Sijia; Lou, Jing; Kang, Xuqin; Lian, Huixin; Niu, Shaohua; Zhang, Wenzhong; Chen, Yuguo

doi:10.21203/rs.3.rs-96911/v1

Cited by 2 publications

(4 citation statements)

References 18 publications

(20 reference statements)

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“…The updated search identified nine modelling studies (7–15) and eight observational studies (16–23).…”

Section: Resultsmentioning

confidence: 99%

“…The updated search identified nine modelling studies (7)(8)(9)(10)(11)(12)(13)(14)(15) and eight observational studies (16)(17)(18)(19)(20)(21)(22)(23).…”

Section: Study Designsmentioning

confidence: 99%

“…Five observational studies assessing the impact of microbiological detection only on this outcome (17,19,(21)(22)(23) reported detecting from 0.01% to 1.5% of cases amongst all travellers. Self-collection of samples was conducted at 4 days post-arrival (17).…”

Section: A Proportion Of Cases Detectedmentioning

confidence: 99%

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International Travel-Related Control Measures to contain The Covid-19 Pandemic: An update to a Cochrane Rapid Review

Hohlfeld¹,

Abdullahi

Abou‐Setta

et al. 2022

Preprint

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Background: COVID-19 has proven to be more difficult to manage for many reasons including its high infectivity rate. One of the potential ways to limit its spread is by controlling free international travel. The objective of this systematic review is to identify, critically-appraise and summarize evidence on international travel-related control measures. Methods: This review is based on the Cochrane review: International travel-related control measures to contain the COVID-19 pandemic and followed the same methods. In brief, we searched for clinical and modelling studies in general health and COVID-19-specific bibliographic databases. The primary outcome categories were (i) cases avoided, (ii) a shift in epidemic development and, (iii) cases detected. Secondary outcomes were other infectious disease transmission outcomes, healthcare utilisation, resource requirements and adverse effects if identified in studies assessing at least one primary outcome. Results: We assessed 66 full-text articles that met with our inclusion criteria. Seventeen new studies (modelling = 9, observational = 8) were identified in the updated search. Most studies were of critical to moderate risk of bias. The added studies did not change the main conclusions of the Cochrane review nor the quality of the evidence (very low to low certainty). However, it did add to the evidence base for most outcomes. Conclusions: Weak evidence supports the use of international travel-related control measures to limit the spread of COVID-19 via air travel. Real-world studies are required to support these conclusions.

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“…The updated search identified nine modelling studies (7–15) and eight observational studies (16–23).…”

Section: Resultsmentioning

confidence: 99%

“…The updated search identified nine modelling studies (7)(8)(9)(10)(11)(12)(13)(14)(15) and eight observational studies (16)(17)(18)(19)(20)(21)(22)(23).…”

Section: Study Designsmentioning

confidence: 99%

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International Travel-Related Control Measures to contain The Covid-19 Pandemic: An update to a Cochrane Rapid Review

Hohlfeld¹,

Abdullahi

Abou‐Setta

et al. 2022

Preprint

View full text Add to dashboard Cite

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“…36.1% of attendants travelled by aeroplane to the conference, which has a negligible risk of transmission of infection due to proper screening and mitigation measures 14 . Breakthrough infection of COVID after the conference was 0.173% (1/576), lower than the 2.605% rate (39/1497) in a study by Bergwerk et al (which was a hospital‐based study), indicating that the risk of transmission is low when the majority of attendants are vaccinated, and safe preventive measures are followed 15 .…”

Section: Discussionmentioning

confidence: 99%

The role of precautions: Organising a medical conference during COVID‐19 pandemic—Lessons from IADVL MIDDERMACON 2021

Bhat

Kamath

Sequeira

et al. 2022

JEADV Clinical Practice

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Background The use of virtual platforms for clinical meetings has become the default approach during this pandemic era. Organising an offline conference during a pandemic is a challenge and is possible if the participating crowd is vaccinated and is willing to follow appropriate pandemic protocols. Objective To determine the feasibility of conducting a conference among mostly vaccinated delegates using standard precautionary protocols. Methods This study was conducted at IADVL MIDDERMACON 2021, held in Mangalore, India, in late October 2021, during the phase of decline of the Delta variant of SARS‐CoV‐2. The study population included all conference attendees, including support staff. Details were collected about their vaccination status, comorbidities, and mode of travel to the conference venue. An reverse‐transcription polymerase chain reaction (RT‐PCR) test was done randomly among the attendees for COVID‐19 infection. A post‐conference assessment and RT‐PCR tests were done at the end of 2 weeks to assess the occurrence of infections among study participants. Results A total of 1744 people were present at the venue, of which 576 (33.03%) participated in the study. The percentage of fully vaccinated was 88.88% (512/576). The majority had taken the vaccine Covishield (manufactured by AstraZeneca), that is, 85.06% (490/576). Infection post the conference was reported in 0.195% (1/576). Conclusions Holding large gatherings like medical conferences pose a challenge during a pandemic. However, to increase the benefits of the conference, it is advisable to hold them offline with vaccinated delegates, follow the advice of the conference organising committee, and practise safe precautionary measures.

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Transmission of SARS-CoV-2 During Air Travel: A Descriptive and Modelling Study

Cited by 2 publications

References 18 publications

International Travel-Related Control Measures to contain The Covid-19 Pandemic: An update to a Cochrane Rapid Review

International Travel-Related Control Measures to contain The Covid-19 Pandemic: An update to a Cochrane Rapid Review

The role of precautions: Organising a medical conference during COVID‐19 pandemic—Lessons from IADVL MIDDERMACON 2021

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