Retrospective Analysis of Travel Limitations Implemented in Japan During the COVID-19 Pandemic, 2020–2022
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By
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Asami Anzai
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Hiroshi Nishiura
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September 12, 2026
Clinical Scorecard: Retrospective Analysis of Travel Limitations Implemented in Japan During the COVID-19 Pandemic, 2020–2022
At a Glance
Category | Detail |
|---|---|
Condition | COVID-19 travel restrictions |
Key Mechanisms | Reduced international travel volume, entry screening, SARS-CoV-2 testing, and quarantine measures intended to limit imported infections. |
Target Population | Travelers entering Japan, including Japanese and non-Japanese nationals. |
Care Setting | National border-control and public health surveillance in Japan. |
Key Highlights
Japan began implementing COVID-19 travel restrictions in February 2020.
All travelers entering Japan were screened and tested for SARS-CoV-2 from January 9, 2021, through May 31, 2022.
Restrictions and other border measures were revised as the pandemic evolved, including during the emergence of Alpha, Delta, and Omicron variants.
Guideline-Based Recommendations
Diagnosis
The study does not provide diagnostic guidelines. SARS-CoV-2 infection among travelers was assessed through airport entry screening and testing.
Management
The study does not establish formal management recommendations. Japan used travel restrictions, entry screening, testing, and quarantine as border-control measures during the study period.
Monitoring & Follow-up
The study supports retrospective evaluation of travel volume, screening results, and imported infections when assessing the impact of border-control measures.
Risks
Travel restrictions can produce socioeconomic disruption and interfere with human rights, including freedom of movement. The authors state that implementation should balance public health benefits against negative socioeconomic effects.
Patient & Prescribing Data
The study evaluated travelers entering Japan, including Japanese and non-Japanese nationals.
No prescribing or medication-specific data were evaluated.
Clinical Best Practices
The study does not establish formal clinical best-practice recommendations.
The authors emphasize evaluating the public health impact of reduced travel volume while considering associated socioeconomic harms.
Border-control policies should be assessed in relation to both their potential public health benefits and their effects on socioeconomic activity.
Related Resources & Content
Movsisyan A, Burns J, Biallas R, et al. Travel-related control measures to contain the COVID-19 pandemic: an evidence map. BMJ Open. 2021;11:e041619.
Burns J, Movsisyan A, Stratil JM, et al. International travel-related control measures to contain the COVID-19 pandemic: a rapid review. Cochrane Database Syst Rev. 2021;3:CD013717.
Klinger C, Burns J, Movsisyan A, et al. Unintended health and societal consequences of international travel measures during the COVID-19 pandemic: a scoping review. J Travel Med. 2021;28:1-17.
Based on findings from:
Post-hoc evaluation of travel restrictions during the COVID-19 pandemic in Japan, 2020–2022
Asami Anzai, Hiroshi Nishiura. International Journal Of Infectious Diseases, 2026.
https://www.sciencedirect.com/science/article/pii/S1201971226007034
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