Authorities in the US have imposed new public health requirements for travellers who have recently been in Guinea and the Democratic Republic of Congo. Reuters reports that the move is aimed at preventing the spread of the Ebola disease which has been reported in the two countries. Starting this week, the U.S. government will require travelers from DRC and Guinea to fly into six U.S. airports. Airlines will collect and transmit passenger information to the CDC for public health follow-up for all passengers boarding a flight to the United States who were in DRC or Guinea within the previous 21 days.