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The Centers for Disease Control and Prevention (CDC) and the Department of Homeland Security’s Customs & Border Protection (CBP) this week will begin new layers of entry screening at five U.S. airports that receive over 94 percent of travelers from the Ebola-affected nations of Guinea, Liberia, and Sierra Leone.
New York’s JFK International Airport will begin the new screening on Saturday. In the 12 months ending July 2014, JFK received nearly half of travelers from the three West African nations. The enhanced entry screening at Washington-Dulles, Newark, Chicago-O’Hare, and Atlanta international airports will be implemented next week.
“We work to continuously increase the safety of Americans,” says CDC director Tom Frieden, MD, MPH. “We believe these new measures will further protect the health of Americans, understanding that nothing we can do will get us to absolute zero risk until we end the Ebola epidemic in West Africa.”
“CBP personnel will continue to observe all travelers entering the United States for general overt signs of illnesses at all U.S. ports of entry and these expanded screening measures will provide an additional layer of protection to help ensure the risk of Ebola in the United States is minimized,” says Secretary of Homeland Security Jeh Johnson. “CBP, working closely with CDC, will continue to assess the risk of the spread of Ebola into the United States, and take additional measures, as necessary, to protect the American people.”
CDC is sending additional staff to each of the five airports. After passport review:
• Travelers from Guinea, Liberia, and Sierra Leone will be escorted by CBP to an area of the airport set aside for screening.
• Trained CBP staff will observe them for signs of illness, ask them a series of health and exposure questions and provide health information for Ebola and reminders to monitor themselves for symptoms. Trained medical staff will take their temperature with a non-contact thermometer.
• If the travelers have fever, symptoms or the health questionnaire reveals possible Ebola exposure, they will be evaluated by a CDC quarantine station public health officer. The public health officer will again take a temperature reading and make a public health assessment. Travelers, who after this assessment, are determined to require further evaluation or monitoring will be referred to the appropriate public health authority.
• Travelers from these countries who have neither symptoms/fever nor a known history of exposure will receive health information for self-monitoring.
Entry screening is part of a layered process that includes exit screening and standard public health practices such as patient isolation and contact tracing in countries with Ebola outbreaks. Successful containment of the recent Ebola outbreak in Nigeria demonstrates the effectiveness of this approach.
These measures complement the exit screening protocols that have already been implemented in the affected West African countries, and CDC experts have worked closely with local authorities to implement these measures. Since the beginning of August, CDC has been working with airlines, airports, ministries of health, and other partners to provide technical assistance for the development of exit screening and travel restrictions in countries affected by Ebola. This includes:
• Assessing the capacity to conduct exit screening at international airports;
• Assisting countries with procuring supplies needed to conduct exit screening;
• Supporting with development of exit screening protocols;
• Developing tools such as posters, screening forms, and job-aids; and
• Training staff on exit screening protocols and appropriate personal protective equipment (PPE)
Today, all outbound passengers are screened for Ebola symptoms in the affected countries. Such primary exit screening involves travelers responding to a travel health questionnaire, being visually assessed for potential illness, and having their body temperature measured. In the last two months since exit screening began in the three countries, of 36,000 people screened, 77 people were denied boarding a flight because of the health screening process. None of the 77 passengers were diagnosed with Ebola and many were diagnosed as ill with malaria, a disease common in West Africa, transmitted by mosquitoes and not contagious from one person to another.
Exit screening at airports in countries affected by Ebola remains the principal means of keeping travelers from spreading Ebola to other nations. All three of these nations have asked for, and continue to receive, CDC assistance in strengthening exit screening.