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１９９２年５月～６月按统一的方案，在北京市７个区（县）共调查２７４２人，包括城镇和乡村不同年龄、性别和职业人群。现况调查本市抗－ＨＣＶ阳性率为２．５２％。感染的分布未观察到明显的年龄、性别、城乡差异和家庭聚集现象，但地区和职业差异显著．调查结果表明：ＨＣＶ感染的分布特点为灶状分布，即感染围绕着传染来源而分布．血源被ＨＣＶ污染是ＨＣＶ感染率偏高的主要原因．受血是感染ＨＣＶ的主要危险因素．
From May to June 1992, according to a unified plan, 2742 people were surveyed in seven districts and counties of Beijing, including urban and rural people of different ages, genders and occupations. Status survey The city anti-HCV positive rate was 2.52%. No significant age, sex, urban-rural differences and family aggregation were observed in the distribution of infections, but there was significant regional and occupational differences. The survey results show that: HCV infection is characterized by the distribution of foci, that infection around the source of infection distribution. Blood contamination by HCV is a major cause of HCV infection. Blood is the main risk factor for HCV infection.