ROGER I.GLASS is chief of the Viral Gastroenteritis Section at the Centers for Disease Control and Prevention and adjunct professor of pediatrics and international health at Emory University.

• 葛拉斯是美国疾病防制中心病毒胃肠炎部门的主任，也是艾茉莉大学小儿病学及国际卫生学的兼任教授。