![]() Unprecedented containment and mitigation policies have been implemented in an effort to limit the spread of COVID-19, including travel restrictions, screening and testing of travelers, isolation and quarantine, and school closures.Ī key goal of such policies is to decrease the encounters between infected individuals and susceptible individuals and decelerate the rate of transmission. ![]() The current coronavirus disease 2019 (COVID-19) outbreak vividly demonstrates the burden that respiratory infectious diseases impose in an intimately connected world.
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