圣诞和新年假期期间，悉尼已记录了七例军团病（legionnaires' disease）感染病例，当局敦促悉尼居民对该呼吸道疾病保持警惕。 新州卫生部发出警告 ...

This undated image made available by the Centers for Disease Control and Prevention shows a large grouping of Legionella pneumophila bacteria (Legionnaires' disease). (Janice Haney Carr/Centers ...