FILE PHOTO: A United Airlines Boeing 737-800 sits at a gate after arriving at O'Hare International Airport in Chicago, Illinois, U.S., June 5, 2019. REUTERS/Kamil Krzaczynski/File Photo
O'Hare International Airport in Chicago, Illinois, one of the airports travellers who have been in the Democratic Republic of the Congo or Guinea in the last 21 days will need to travel to. Reuters

US adopts rules for DRC and Guinea travellers over Ebola concerns