Pres. Obama says that restrictive measures that confine U.S. healthcare workers on their return from west Africa could discourage from fighting the virus at its source:
We can’t hermetically seal ourselves off
Strict travel measures won’t prevent infections:
Yes, we are likely to see a possible case elsewhere outside of these countries, and that’s true whether or not we adopt a travel ban, whether or not you adopt a quarantine. We have to keep in mind that if we’re discouraging our health care workers, who are prepared to make these sacrifices, from traveling to these places in need, then we’re not doing our job in terms of looking after our own public health and safety.