1406709631000-AX217-356E-9Health officials in the United Kingdom and Hong Kong, fearing that the outbreak of the deadly Ebola virus in West Africa could go global, are quarantining airline passengers from the region who have shown symptoms of the disease. The outbreak — the largest in history — has spread across Guinea, Liberia, Nigeria and Sierra Leone and killed at least 672 people, according to the World Health Organization. The disease has no vaccine and no specific treatment. It has a fatality rate of at least 60%. In the United Kingdom, the Department of Health confirmed Wednesday that a man who flew into Birmingham airport recently from Nigeria via Paris was clear of the virus despite saying he felt feverish. British Foreign Secretary Philip Hammond, who chaired an emergency meeting Wednesday on Ebola with health experts, scientists and other ministers, said “the issue is about the possibility of somebody who has contracted the disease in Africa getting sick here.” More