Limited information is available to characterize the spectrum of clinical illness, transmission efficiency, and the duration of viral shedding for persons with novel coronavirus disease (COVID-19). This guidance is based on available information about COVID-19 and subject to change as additional information becomes available.… read more »
Testing 1-3 days before and 2-5 days after travel may reduce the risk of spreading COVID-19. Testing does not eliminate all risk, but when combined with everyday precautions like wearing masks, social distancing, and handwashing, it can make travel safer by reducing spread on planes and in airports and at travelers’ destinations.… read more »