A.及時(shí)進(jìn)行隔離 B.病情允許時(shí),患者應(yīng)當(dāng)戴外科口罩 C.陪伴者應(yīng)當(dāng)戴外科口罩 D.指導(dǎo)患者注意呼吸道衛(wèi)生及手衛(wèi)生