Transcutaneous immunization using colonization factor and heat-labile enterotoxin induces correlates of protective immunity for enterotoxigenic Escherichia coli. Wed, 11/04/2020 - 23:56 / Comments Submitted by KerstenAdmin on Wed, 11/04/2020 - 23:56 Yu et al, Infect Immun, March 2002 2002 Preclinical LINK