The strategy was to carry out immunization with an rLm expressing gp33 (rLm-gp33)
followed by challenge with RA59-gfp/gp33.
(It had previously been shown that immunization with rLm expressing np118 epitope from LCVM could induce an epitope-specific memory response that was protective against LCMV infection
we challenged mice that had been previously immunized with a recombinant
Listeria monocytogenes (rLm)