The outbreak of Hantavirus on a cruise ship has led to biotech and pharmaceutical stocks surging on reports of firms developing vaccines.

About 12 countries have so far been linked to the hantavirus outbreak on the MV Hondius, as the UN health agency confirms at least five cases.

A hantavirus outbreak is one of the latest health crises tied to cruise ships, but experts say travelers don't have new cause for concern.

The outbreak of Hantavirus on a cruise ship has led to biotech and pharmaceutical stocks surging on reports of firms developing vaccines.