Without question, pregnant women are at increased risk of complications. This heightened risk takes on added importance for a virus, like this one, that preferentially infects younger age groups.

• 毫无疑问，孕妇出现并发症的风险会加大。对更多地感染较年轻年龄组的病毒，象现在这种病毒，这种更高的风险具有额外的重要性。