LONDON - Fears that the west African Ebola outbreak could spread to other continents grew on Wednesday with European and Asian countries on alert and a leading medical charity warning the epidemic was out of control.
Doctors Without Borders (MSF) said the crisis gripping Guinea, Liberia and Sierra Leone would only get worse and warned there was no overarching strategy to handle the world's worst outbreak of the disease.
The US Peace Corps announced it was pulling hundreds of volunteers from the three countries.
Hong Kong announced quarantine measures for suspected cases, although one woman arriving from Africa with possible symptoms tested negative, while the EU said it was ready to deal with the threat.
The International Civil Aviation Organization (ICAO) has held talks with global health officials on potential measures to halt the spread of the disease.