Not just intimately between family members who took care of an ailing sister or brother, but a community infected -- spread within a school, spread within a dormitory, something of that nature.
不仅是亲密的 照顾生病的兄弟姐妹的家庭成员之间， 而是一个社区被传染 在一个学校里传播， 在一个集体宿舍区里传播，有那种特征的事件。