ReviewBMJ global health2022
Fifteen days in December: capture and analysis of Omicron-related travel restrictions.
Review in BMJ global health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
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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.
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.
Who cites it
15 citing papers in PubMed, 28 citations in OpenAlex.
- Objectionable Solidarity and Fractures in the Ethics of Global Health Solidarity : The Curse of COVID 19 Vaccine Donations Gone Awry.Journal of bioethical inquiry · 2026Article
- Comparative Analysis of Flight Volume Effects on COVID-19 and Influenza Transmission Across Variable Control Intensities, 2019-2024.The Journal of infectious diseases · 2026Article
- Monitoring Cross-Border Dissemination of Antimicrobial Resistance (AMR) via Air Travel to Saudi Arabia: Formulation of Monitoring Strategies to Mitigate AMR Concerns.Environmental science & technology · 2026Article
- Pre-departure PCR testing of travellers for SARS-CoV-2 was an effective tool in limiting transmission in Greenland during the early phases of the COVID-19 pandemic.BMC public health · 2025Article
- The WHO Disease Outbreak News during the Covid-19 pandemic.PLOS global public health · 2025Article
- Open data for COVID-19 policy analysis and mapping.Scientific data · 2023Article
- Article
- Toward a global virus genomic surveillance network.Cell host & microbe · 2023Review
- The global dynamic transmissibility of COVID-19 and its influencing factors: an analysis of control measures from 176 countries.BMC public health · 2023Article
- The Unintended Consequences of Information Provision: The World Health Organization and Border Restrictions during COVID-19.International studies perspectives · 2023Article
- Determining Gaps in Publicly Shared SARS-CoV-2 Genomic Surveillance Data by Analysis of Global Submissions.Emerging infectious diseases · 2022Article
- Global Expansion of SARS-CoV-2 Variants of Concern: Dispersal Patterns and Influence of Air Travel.medRxiv : the preprint server for health sciences · 2022Article
- SARS-CoV-2 Omicron (B.1.1.529) Variant: No Time to Wait!Acta bio-medica : Atenei Parmensis · 2022Article
- Data sharing: A Long COVID perspective, challenges, and road map for the future.South African journal of scienceArticle
- Effect of Omicron on the prevalence of COVID-19 in international travelers at the Mexico city international airport. December 16th, 2021 to January 31st, 2022.Travel medicine and infectious diseaseArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Following the identification of the Omicron variant of the SARS-CoV-2 virus in late November 2021, governments worldwide took actions intended to minimise the impact of the new variant within their borders. Despite guidance from the WHO advising a risk-based approach, many rapidly implemented stringent policies focused on travel restrictions. In this paper, we capture 221 national-level travel policies issued during the 3 weeks following publicisation of the Omicron variant. We characterise policies based on whether they target travellers from specific countries or focus more broadly on enhanced screening, and explore differences in approaches at the regional level. We find that initial reactions almost universally focused on entry bans and flight suspensions from Southern Africa, and that policies continued to target travel from these countries even after community transmission of the Omicron variant was detected elsewhere in the world. While layered testing and quarantine requirements were implemented by some countries later in this 3-week period, these enhanced screening policies were rarely the first response. The timing and conditionality of quarantine and testing requirements were not coordinated between countries or regions, creating logistical complications and burdening travellers with costs. Overall, response measures were rarely tied to specific criteria or adapted to match the unique epidemiology of the new variant.
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Registered trials
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.