Helms C M, Wintermeyer L A, Zeitler R R, Larew R E, Massanari R M, Hall N H, Hausler W J, Johnson W
Am J Public Health. 1984 Aug;74(8):835-6. doi: 10.2105/ajph.74.8.835.
In October 1981, an outbreak of 29 cases of community-acquired pneumonia occurred among adult residents of Johnson County, Iowa. Retrospective study revealed 12 cases (41 per cent) had laboratory evidence of Legionnaires' disease (LD). No significant differences in clinical or epidemiological features were found between LD cases and the other pneumonias in the outbreak. All LD cases received erythromycin; one case died for a case-fatality rate of 8 per cent. The outbreak's focus could not be identified.
1981年10月,爱荷华州约翰逊县的成年居民中爆发了29例社区获得性肺炎。回顾性研究发现,12例(41%)有军团病(LD)的实验室证据。在此次疫情中,LD病例与其他肺炎病例在临床或流行病学特征上未发现显著差异。所有LD病例均接受了红霉素治疗;1例死亡,病死率为8%。此次疫情的源头无法确定。