目的了解2003~2006年深圳松岗街道劳务工hbsag检出阳性率，为制定防治措施提供科学依据。
Objective to Anylyze the physical check-up data and understand the HBsAg positive rate in workers from other areas in Songgang District of Shenzhen from2003to2006and provide scientific baseis for making effective control measures .
松岗街道