A 2004 survey found that, among children born after the start of the vaccination programme, 5.2% of those aged seven to 12 years were hepatitis b-antigen-positive.
2004年所作的一项调查发现,计划免疫活动开始以来出生的儿童中,有5.2%的7至12岁儿童呈乙肝抗原阳性反应。
Other countries (e. g. French Guiana and Guyana) have recently included yellow fever vaccination in their national routine programme for immunization.
其他国家如法属圭亚那和圭亚那最近已将黄热病预防接种纳入国家常规免疫接种规划。
Guiana and Guyana have recently included yellow fever vaccination in their national routine programme for immunization.
其他国家如法属圭亚那和圭亚那最近已将黄热病预防接种纳入国家常规免疫接种规划。
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