Risk-conditions for chronic Q fever of screened patients in the vaccination campaign in 2011.

Only patients included from the high-incidence area, stratified according to age groups and sex. Risk-conditions for chronic Q fever of screened patients in the vaccination campaign in 2011.仅纳入来自高发地区的患者，并按年龄组与性别进行分层。 2011年疫苗接种活动中接受筛查的患者的慢性Q热（Q fever）风险状况。