CNN New Day May 28, 2015 11:00:00
Bacteria last friday after handling the samples. the question now, how could this have happened. >> it's a great question. that's exactly why we brought in the center for disease control. and their investigators. >> the centers for disease control now investigating as officials reveal the samples were shipped under less rigorous conditions since it was plooefed ed -- believed the bacteria was dead. nbc news reporting fed ex transported the samples. fed ex tells cnn they're working with officials to gather information. >> no known risk to the general public and no suspected or confirmed cases o...