Huitema S W, Pal T M, Groothoff J W
Ned Tijdschr Geneeskd. 1989 Sep 30;133(39):1939-41.
In order to obtain a better picture of the course of dairy farm fever, a leptospirosis caused by hardjo, an inquiry by means of questionnaires was conducted into its symptomatology and its trade-connected risk factors. The inquiry was performed in 32 seropositive dairy farmers and a matched-pair control group. All persons involved were living or working on contaminated farms. Of the seropositive persons 63% reported symptoms suggestive of dairy farm fever and in all of them there had been obvious fatigue of an extreme and protracted nature and an often lengthy period of recovery. The results of this investigation suggest underreporting of this disease. Besides vaccination and/or treatment of the dairy cattle adjustment of operations on dairy farms (e.g. wearing personal protection) might be feasible for prevention. The causal relationship between occupation and dairy farm fever indicates an occupational disease.
为了更全面地了解奶牛场热（一种由哈氏钩端螺旋体引起的钩端螺旋体病）的病程，通过问卷调查的方式对其症状学及与行业相关的风险因素进行了调查。该调查在32名血清学阳性的奶农及一组配对对照组中进行。所有参与调查的人员均生活或工作在受污染的农场。在血清学阳性人员中，63%报告有提示奶牛场热的症状，并且他们所有人都有极度且持续时间长的明显疲劳，以及往往较长的恢复时间。本次调查结果提示该病存在报告不足的情况。除了对奶牛进行疫苗接种和/或治疗外，调整奶牛场的操作（如穿戴个人防护用品）可能对预防该病可行。职业与奶牛场热之间的因果关系表明这是一种职业病。
