With the H5N1 avian flu virus spreading from Asia to Europe, many people may ask is an influenza pandemic inevitable or can we contain the outbreak at its beginning and avert a flu pandemic?

• 随着H5N1禽流感病毒在亚洲，欧洲及世界其他地方传播，越来越多的人禁不住地想知道禽流感病毒引发全球大流感是否无可避免，或许能将大流感控制在初发之时使其无法肆虐人类。