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. 2022 Apr 9;399(10333):1367-1369.
doi: 10.1016/S0140-6736(22)00366-X. Epub 2022 Mar 2.

Travel measures in the SARS-CoV-2 variant era need clear objectives

Adam J Kucharski  1 , Mark Jit  2 , James G Logan  3 , Matthew Cotten  4 , Samuel Clifford  5 , Billy J Quilty  5 , Timothy W Russell  5 , Rosanna W Peeling  6 , Martin Antonio  7 , David L Heymann  8
Affiliations

Travel measures in the SARS-CoV-2 variant era need clear objectives

Adam J Kucharski et al. Lancet. .
No abstract available

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Figures

Figure
Figure
Changes in proportion of countries with particular stringency of travel control measures over time Data are from the Oxford COVID-19 Government Response Tracker via Our World In Data., Dashed lines show when alpha, delta, and omicron were declared variants of concern on Dec 18, 2020, May 11, 2021, and Nov 26, 2021, respectively.
See this image and copyright information in PMC

References

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    1. Hale T, Angrist N, Goldszmidt R, et al. A global panel database of pandemic policies (Oxford COVID-19 Government Response Tracker) Nat Hum Behav. 2021;5:529–538. - PubMed
    1. Ritchie H, Mathieu E, Rodés-Guirao L, et al. Coronavirus pandemic (COVID-19). Our World in Data. 2022. https://ourworldindata.org/coronavirus
    1. Chinazzi M, Davies JT, Ajelli M, et al. The effect of travel restrictions on the spread of the 2019 novel coronavirus (COVID-19) outbreak. Science. 2020;38:395–400. - PMC - PubMed
    1. Russell TW, Wu JT, Clifford S, et al. Effect of internationally imported cases on internal spread of COVID-19: a mathematical modelling study. Lancet Public Health. 2021;6:e12–e20. - PMC - PubMed

Supplementary concepts