FRANCE - Combining vaccines often brings convenience but at the cost of efficacy.The aim of a recent trial by Merial was to find out if a combined vaccine of CIRCOVAC and SPRINTVAC impaired the efficacy of the vaccines.The trial found that the combined vaccine did not reduce the efficacy - it provided just as good results as the products used separately.

　　联合疫苗除了不能带来经济成本的减少，在其他方面都能带来便捷。最近由梅里亚集团(Merial)进行的一项试验旨在找出联合疫苗的药效，即要是圆环疫苗全病毒灭活苗(CIRCOVAC)与猪哮喘疫苗(SPRINTVAC)结合在一起，这种联合疫苗是否会损伤两种疫苗的药效。试验发明，联合疫苗不会降低药效-它所提供的实验结果与单孤使用任意一个疫苗的结果一样出色。