The main purpose of this study is to evaluate the body's immune response to the LT patch at different doses. The secondary purpose of this study is to evaluate the safety of the LT patches at different doses and the safety of the skin preparation system. Another secondary purpose is to compare the safety and the body's immune response to LT patches placed on the upper arm versus the lower back.
Name: Biological: heat-labile enterotoxin of E. coli (LT)
There is one SNP
- Ever received investigational enterotoxigenic E. coli, LT, or LT(R192G) or NasalFlu, Berna Biotech, Ltd. - Ever received cholera toxin or vaccine (e.g. --- R192G ---