But NIAID pulled the plug on its trial after an examination of the data from a phase II study showed that fewer than 30 percent of the volunteers generated cytotoxic T cells against HIV.

• 但是NIAID在审视了该疫苗第二阶段试验的数据，发现只有不到30%25的受试者体内产生对抗HIV的杀手细胞，于是他们决定终止试验。