Joly J R, Déry P, Gauvreau L, Coté L, Trépanier C
CMAJ. 1986 Dec 1;135(11):1274-7.
Five cases of Legionnaires' disease caused by Legionella dumoffii were identified within an 11-month period in a hospital in the Quebec City area. In four cases bacterial isolates were obtained from clinical specimens, and in one case seroconversion was demonstrated. All the patients had been admitted to hospital within 10 days before diagnosis. Two of the patients were immunosuppressed children. Only 1 of the 40 hot water samples from the hospital yielded L. dumoffii; however, 6 of 11 distilled water samples contained the bacterium. All the patients had been exposed to distilled water, four through respiratory therapy equipment and one through a room humidifier. Following the use of sterile distilled water in the apparatus, no further cases were identified. This is the first reported outbreak of Legionnaires' disease caused by L. dumoffii, and it is the first time that nosocomial legionellosis has been linked to contaminated distilled water in Canada.
在魁北克市地区的一家医院,11个月内确诊了5例由杜莫夫军团菌引起的军团病。4例患者的临床标本中分离出细菌菌株,1例患者血清转化得到证实。所有患者在诊断前10天内入院。其中2例患者为免疫抑制儿童。医院40份热水样本中仅1份检出杜莫夫军团菌;然而,11份蒸馏水样本中有6份含有该细菌。所有患者均接触过蒸馏水,4例通过呼吸治疗设备接触,1例通过房间加湿器接触。在设备中使用无菌蒸馏水后,未再发现新病例。这是首次报告由杜莫夫军团菌引起的军团病暴发,也是加拿大首次将医院内军团菌病与受污染的蒸馏水联系起来。