Childs J E, Schwartz B S, Ksiazek T G, Graham R R, LeDuc J W, Glass G E
Department of Immunology and Infectious Diseases, Johns Hopkins School of Hygiene and Public Health, Baltimore, Md 21205.
Am J Public Health. 1992 Apr;82(4):597-9. doi: 10.2105/ajph.82.4.597.
Leptospiral antibody prevalence was 16% in residents of Baltimore. Seropositivity was associated with age, gender, race, and bird ownership, reduced the antibody risk associated with age and race from odds ratios (95% confidence interval) of 3.3 (2.0, 5.5) and 3.3 (1.1, 9.3), respectively, to the baseline level. These data establish the high prevalence of leptospiral antibody in Baltimore and suggest a protective role for cats in reducing the risk of human infection.
巴尔的摩居民中钩端螺旋体抗体流行率为16%。血清阳性与年龄、性别、种族和养鸟情况有关，将与年龄和种族相关的抗体风险优势比（95%置信区间）分别从3.3（2.0，5.5）和3.3（1.1，9.3）降至基线水平。这些数据证实了巴尔的摩钩端螺旋体抗体的高流行率，并表明猫在降低人类感染风险方面具有保护作用。
