More severe deformities, they need crutches to walk.

更严重会导致畸形，他们需要拐杖走路。

That view rejected by the World Health Organization, which does advise pregnant women to avoid the Olympics entirely, because of the risk of severe deformities to unborn children.

此番观点遭到了世界卫生组织拒绝, 该组织的确曾建议孕妇, 出于感染病毒后胎儿可能严重畸形发育的风险勿前往此次奥运会。