Strategies at points of entry to reduce importation risk of COVID-19 cases and reopen travel.

摘要: BACKGROUND: With more countries exiting lockdown, public health safety requires screening measures at international travel entry points which can prevent the reintroduction or importation of SARS-CoV-2 virus. Here, we estimate number cases captured, quarantining days averted and secondary expected to occur with interventions. METHODS: To active case exportation risk from 153 recorded COVID-19 deaths, created a simple data-driven framework calculate infectious upcoming individuals out 100 000 potential travellers each country, assessed six reduction strategies; Strategy 1 (S1) has no on entry, S2 tests all isolates test positives where those who negative 7 days are permitted S3 equivalent but for 14 day period, S4 quarantines subsequently S5 14 days S6 testing prevention positive. RESULTS: The average in across relative S1 is 90.2% S2, 91.7% S3, 55.4% S4, 91.2% 77.2% S6. An 79.6% infected upon arrival. For top exporting countries, an 88.2% through 7-day isolation positives, increasing 92.1% 14-day isolation. A substantially smaller 30.0% traveller quarantining, 84.3% quarantining. CONCLUSIONS: should be implemented provided good practices place. If not feasible, minimum recommended strict adherence