We conducted a retrospective cohort study that tested 2,000 US military personnel for Coccidioides antibodies in a disease-endemic region. The overall incidence of seroconversion was 0.5 cases/100 person-years; 12.5% of persons who seroconverted had illnesses requiring medical care. No significant association was found between demographic characteristics and seroconversion or disease.

中文翻译：

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美国加利福尼亚州圣华金河谷 Lemoore 海军航空站军事人员的球孢子菌病血清发病率和风险

我们进行了一项回顾性队列研究，在疾病流行地区测试了 2,000 名美国军人的球孢子菌抗体。血清转换的总发生率为0.5例/100人年；12.5% 的血清转化者患有需要医疗护理的疾病。人口统计学特征与血清转化或疾病之间未发现显着关联。