bivalent vaccine

• 二价疫苗

bivalent vaccine的用法和样例：

例句

1. At the same time, Merck developed a pentavalent vaccine derived from five human-bovine reassortant strains that together would target the major strains of rotavirus.
   此时，美国默克药厂研发了一种五价疫苗，由人及牛的五株病毒品系组成，可对付一些主要的轮状病毒品系。