id author title date pages extension mime words sentences flesch summary cache txt cord-300313-w8njg569 Clifford, S. Strategies to reduce the risk of SARS-CoV-2 re-introduction from international travellers 2020-07-24 .txt text/plain 7266 363 51 To mitigate SARS-CoV-2 transmission risks from international travellers, many countries currently use a combination of up to 14 days of self-quarantine on arrival and testing for active infection. Due to differences in COVID-19 prevalence and estimated travel volume in July 2020, the expected numbers of infectious entries per week in a no-intervention scenario (apart from self-reporting of symptoms and syndromic screening at departure) from the USA are approximately double that of the EU (up to 28 and up to 12, respectively). While the acceptable number of infected travellers entering the community will depend on the local context of SARS-CoV-2 transmission we find that for travellers arriving from low prevalence destinations the absolute risk of seeding new outbreaks is likely low and hence either testing and/or quarantine-based strategies may do little to further reduce such risk, particularly when many infectious arrivals are asymptomatic cases. ./cache/cord-300313-w8njg569.txt ./txt/cord-300313-w8njg569.txt