❷ 呼吸道疾病主要靠飞沫传播，病防病菌易在人员集中密闭的治重环境中产生交叉感染。
❸ 流感病程一般5-10天，呼吸及时识别、道疾点及早治疗，病防可帮助患者缩短病程、治重缓解不适，呼吸避免向重症发展。道疾点
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