They are thought to have caught the virus before the outbreak was identified, the Red Cross says.
Related stories
Canadian tariff deadline looms as two sides continue to negotiate
Tracking USS Lincoln's months-long mission as concerns about conditions grow
Australia politics live: NDIS reforms to pass parliament today after 63 amendments get Coalition on side
ICC says US sanctions on top court members 'undermine rule of law'
Jailed businessman appears accused of bribes and cartel links
Russian missile strike kills 10 civilians in Kharkiv