The total number of cases in a suspected hantavirus outbreak aboard the luxury MV Hondius cruise ship has risen to seven — as roughly 150 passengers have been ordered to stay put in West African waters, according to authorities.

As of Monday, seven cases, including two laboratory-confirmed cases and five suspected cases, have been identified in the suspected outbreak of the rare, rodent-borne illness on the Dutch cruise liner , according to the World Health Organization.

The total number of cases in a suspected hantavirus outbreak aboard the luxury MV Hondius cruise ship has risen to seven.…