I caught that as well.
It’s just assumed that WE will take up the slack.
http://in.reuters.com/article/2014/08/22/us-health-ebola-senegal-idINKBN0GM1HV20140822?feedType=RSS&feedName=health&utm_source=dlvr.it&utm_medium=twitter&dlvrit=309303
“Senegal blocks Liberia aid flight, imposes Ebola travel curbs”