Funding for this research was provided by:
National Institute for Occupational Safety and Health (NIOSH/CDC – U54OH010170)
College of Veterinary Medicine, University of Minnesota
Received: 18 January 2017
Accepted: 4 October 2017
First Online: 19 October 2017
Ethics approval and consent to participate
: All procedures were approved by the Institutional Review Board (1111 M06583) and the Institutional Biosafety Committee (1406-31632H) of the University of Minnesota.
: The authors declare that they have no competing interests.
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