Health authorities monitor hantavirus cruise passengers

Residents in multiple countries, including the United States, are being monitored for hantavirus after traveling on the MV Hondius, an Oceanwide Expeditions cruise ship now tied to several cases of the virus. On Thursday, five people had been confirmed to have hantavirus, and three others were suspected of contracting it, according to the World Health Organization.  Vanderbilt's school of Medicine, Dr. William Schaffner, joins LiveNOW's Mike Pache to discuss.