On Sept. 9, 2020, the U.S. government (USG) announced that it will remove requirements for directing all flights carrying airline passengers arriving from, or recently had a presence in, certain countries to land at one of 15 designated airports and halt enhanced entry health screening for these passengers beginning Sept. 14, 2020.

Enhanced entry health screening was conducted for those arriving from, or with recent presence in, China (excluding the Special Administrative Regions of Hong Kong and Macau), Iran, the Schengen region of Europe, the United Kingdom (excluding overseas territories outside of Europe), Ireland, and Brazil.

We now have a better understanding of COVID-19 transmission that indicates symptom-based screening has limited effectiveness because people with COVID-19 may have no symptoms or fever at the time of screening, or only mild symptoms. Transmission of the virus may occur from passengers who have no symptoms or who have not yet developed symptoms of infection. Therefore, CDC is shifting its strategy and prioritizing other public health measures to reduce the risk of travel-related disease transmission.

USG resources will instead be dedicated to more effective mitigation efforts that focus on the individual passenger, including: pre-departure, in-flight, and post-arrival health education for passengers; robust illness response at airports; voluntary collection of contact information from passengers using electronic means as proposed by some airlines to avoid long lines, crowding and delays associated with manual data collection; potential testing to reduce the risk of travel-related transmission of the virus that causes COVID-19 and movement of the virus from one location to another; country-specific risk assessments to assist passengers in making informed decisions about travel-related risk; enhancing training and education of partners in the transportation sector and at United States ports of entry to ensure recognition of illness and immediate notification to CDC; and post-arrival passenger recommendations for self-monitoring and precautions to protect others, with enhanced precautions, including staying home to the extent possible for 14 days for people arriving from high-risk destinations.