May 24 (UPI) -- The hantavirus outbreak linked to a cruise ship that gained worldwide attention earlier this month is "stable for now," according to the head of the World Health Organization, who said passengers and crew were still being monitored. There have been 12 cases, including three deaths, stemming from an outbreak of the disease that struck the Hondius vessel early this month, prompting emergency evacuations of its passengers and crew. The ship, operated by the Netherlands-based