METHODS	A total of 299 individuals received 2 doses of JS7 DNA vaccine and 2 doses of MVA/HIV62B at 0 , 2 , 4 , and 6 months , respectively ( the DDMM regimen ) ; 3 doses of MVA/HIV62B at 0 , 2 , and 6 months ( the MMM regimen ) ; or placebo injections .\