C57BL/6, and Balb/c mice, ages 6–8 weeks, were purchased from
either Jackson Laboratory (Bar Harbor, ME) or University of Florida
Animal Care Services (ACS) (Gainesville, FL). All animals were housed
in specific pathogen free-environment in University of Florida ACS
facilities and used in accordance with detailed experimental protocols
approved by University of Florida Institutional Animal Care and Use
Committee (IACUC).