Funding for this research was provided by:
U.S. Department of Health & Human Services | National Institutes of Health (GM070559-12)
U.S. Department of Health & Human Services | National Institutes of Health (1R21AI131427-01)
National Science Foundation (IIP-1338775)
U.S. Department of Agriculture (2351177000)
Article History
Received: 23 April 2018
Accepted: 11 September 2018
First Online: 2 October 2018
Competing Interests
: The authors declare no competing interests.