Funding for this research was provided by:
National Institutes of Health (R00HL131817, U01-AI125940, AI095289)
Received: 2 December 2019
Accepted: 28 January 2020
First Online: 4 February 2020
Ethics approval and consent to participate
: All studies were approved by the University of Pennsylvania’s Institutional Animal Care and Use Committees, protocol 806262, and followed all NIH Office of Laboratory Animal Welfare guidelines. No human/patient studies were performed.
: No human studies were performed, so not applicable.
: The authors declare that they have no competing interests.