Rod Curtis at the World Health Organization in Geneva says the new bivalent vaccine solves this problem.
在日内瓦的世界卫生组织成员Rod Curtis表示，新的二价疫苗能够解决这个问题。
The results indicated that both the number of rodbivalents and the number of pre-division bivalents increased markedly after radiation, while the number of bivalent chiasma tended to decrease.