一项超过9000多例儿童和青少年的最新研究表明,应用鼻喷雾流感疫苗(FluMist)通常是较为安全的;但3岁以下某些儿童的反应性呼吸道疾病的危险性问题仍然存在。据研究者 Steve Black 报道,现已证实免疫接种 FluMist 的儿童与对照组儿童相比,前者接种疫苗后6周内因哮喘而就诊的危险性增高;但在免疫接种前已患 A new study of more than 9,000 children and adolescents shows that the use of a nasal spray flu vaccine (FluMist) is generally safer; however, some children under the age of 3 are still at risk of reactive respiratory disease. According to investigator Steve Black, it has been demonstrated that children immunized with FluMist have a higher risk of asthma visits within 6 weeks of vaccination compared with children in the control group, but have had prior immunization