A car bomb explosion near a Shiah mosque in the Iraqi capital Baghdad has killed at least 30 people and wounded many others. The bomb went off as worshippers were leaving the mosque in Kasra in northern Baghdad after evening prayers. _____________________________________________ Research published in the journal Nature suggested that about half of the vaccinated monkeys were able to clear infection. The researchers have now created a form of vaccine that could be tested on humans. It's hoped within the next two years. Rebecca Morella reports. 位于伊拉克首都巴格达的一座什叶派清真寺附近发生汽车炸弹爆炸,造成至少三十人死亡,多人受伤.爆炸发生时,礼拜者们已做完晚祷,正从位于巴格达北部的什叶派清真寺离开. ________________________________________研究人员在<自然>杂志上发表论文称,被注射疫苗的猴子中,约有一半能清除艾滋病毒感染.研究人员现已研制出一种可以用于人身测试的疫苗,希望在未来两年内投入使用.丽贝卡?莫雷那报道.