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10.1016/j.tmaid.2021.102044

http://scihub22266oqcxt.onion/10.1016/j.tmaid.2021.102044
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33838318!8025603!33838318
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suck abstract from ncbi


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pmid33838318      Travel+Med+Infect+Dis 2021 ; 41 (ä): 102044
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  • Sustainable border control policy in the COVID-19 pandemic: A math modeling study #MMPMID33838318
  • Zhu Z; Weber E; Strohsal T; Serhan D
  • Travel Med Infect Dis 2021[May]; 41 (ä): 102044 PMID33838318show ga
  • BACKGROUND: Imported COVID-19 cases, if unchecked, can jeopardize the effort of domestic containment. We aim to find out what sustainable border control options for different entities (e.g., countries, states) exist during the reopening phases, given their own choice of domestic control measures. METHODS: We propose a SUIHR model, which has built-in imported risk and (1-tier) contact tracing to study the cross-border spreading and control of COVID-19. Under plausible parameter assumptions, we examine the effectiveness of border control policies, in combination with internal measures, to confine the virus and avoid reverting back to more restrictive life styles again. RESULTS: When the basic reproduction number R(0) of COVID-19 exceeds 2.5, even 100% effective contact tracing alone is not enough to contain the spreading. For an entity that has completely eliminated the virus domestically, and resumes "normal", without mandatory institutional quarantine, even very strict border control measures combined with effective contact tracing can only delay another outbreak by 6 months. For entities employing a confining domestic control policy, non-increasing net imported cases is sufficient to remain open. CONCLUSIONS: Extremely strict border control in entities, where domestic spreading is currently eliminated (e.g., China), is justifiable. However such harsh measure are not necessary for other places. Entities successfully confining the virus by internal measures can open up to similar entities without additional border controls so long as the imported risk stays non-increasing. Opening the borders to entities lacking sufficient internal control of the virus should be exercised in combination with pre-departure screening and tests upon arrival.
  • |*Public Policy[MESH]
  • |*Travel[MESH]
  • |Basic Reproduction Number[MESH]
  • |COVID-19/epidemiology/*prevention & control/transmission[MESH]
  • |Communicable Disease Control/*methods[MESH]
  • |Communicable Diseases, Imported/epidemiology/prevention & control/transmission[MESH]
  • |Contact Tracing/methods[MESH]
  • |Disease Outbreaks/prevention & control[MESH]
  • |Government[MESH]
  • |Humans[MESH]
  • |Models, Theoretical[MESH]
  • |Pandemics/prevention & control[MESH]
  • |Quarantine/methods[MESH]


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