Regulations for Passenger Ship Administration Article 109

In addition to the sick bay to be built as prescribed above, an international passenger ship whose voyage would take seven days or more shall establish one isolated sick bay to be used exclusively for patients who suffer from an epidemic disease or serious illness. If more than four sick bays are built, two them shall be used as isolated sick bays, for men and women separately.
中文原文 客船管理規則第109條
航程需時滿七日之國際乘客,除應按照前條規定設置病房外,並應增設隔離病房一間,以供乘客患有傳染病或重病之用,設有病房四間以上者,應使其中之兩間,作為隔離病房以便男女分用。

English translation for reference only; the Chinese text prevails. Not legal advice.