“…Immune responses in larger species elicited by intramuscular injection of pDNA have been generally lower than those elicited in small animals, with 1000-fold more pDNA required for effective immunization of larger species than of smaller species (mg versus mg) (Kutzler & Weiner, 2008). However, PMED of DNA vaccines enables significant responses in microgram doses in nonhuman primates (NHPs) (Dean et al, 2005;Fuller et al, 2006Fuller et al, , 2002Payne, Fuller, & Haynes, 2002). In humans, PMED delivery of pDNA was demonstrated to be safe (Payne et al, 2002;Tacket et al, 1999).…”