The number of Canadians connected to a hantavirus outbreak that began on a polar expedition cruise has grown to 10 as federal officials report three more people — two from Alberta and one from Ontario — may have had contact on a flight with someone infected.

Canada’s Chief Public Health Officer Dr. Joss Reimer provided the latest details at a Friday briefing about the MV Hondius cruise ship, which has been the focal point of international attention since an outbreak of the rodent-borne virus on the ship spread to eight people, killing three.