这些病例涉及中部广平省一名5岁男孩、北部南定省一名17岁少女和北部广宁省一名40岁妇女。
The cases concern a5-year-old boy from the central province of Quang Binh , a17-year-old girl from the northern province of Nam Dinh , and a40-year-old woman from the northern province of Quang Ninh .
南定省