论文部分内容阅读
目的探讨牙科手机(简称手机)传播乙型肝炎病毒(HBV)的可能性。方法 2006至2008年在同一城市中随机抽取具有口腔门诊的三级医院、二级医院、一级医院各5所,调查使用后手机消毒与灭菌处理方式、消毒与灭菌处理前后HBsAg污染情况。利用血清斑点杂交方法观察鸭乙型肝炎病毒(DHBV)污染手机后,在洗脱液中DHBV检测阴性的情况下,能否排除其对动物的感染性。结果 2006至2008年,抽检的医院中压力蒸汽灭菌处理手机的比例显著上升,从2006年的27.06%上升至2008年的84.51%;化学消毒剂浸泡、擦拭及其他方法处理手机的比例显著下降,从2006年的60%以上,下降到2008年的10%左右。使用后手机HBsAg抗原性检测阳性率为1.65%。用血清斑点杂交方法检测,在手机洗脱液中DHBV检测阴性的情况下,转染动物后仍可引起动物DHBV感染,证明未灭菌手机HBsAg抗原性检测阴性并不能排除手机仍存在传播HBV的可能性。结论手机传播HBV的可能性存在。压力蒸汽灭菌可杀灭手机上污染的HBV。
Objective To explore the possibility of transmitting Hepatitis B virus (HBV) from dental handpieces (referred to as mobile phones). Methods From 2006 to 2008, 5 hospitals of tertiary hospitals, secondary hospitals and primary hospitals with oral clinics were randomly selected in the same city. The disinfection and sterilization of mobile phones after use were investigated, and the HBsAg contamination before and after disinfection and sterilization . Serum Dot blot hybridization was used to observe whether the infectivity of DHBV could be ruled out when DHBV was contaminated by DHBV. Results From 2006 to 2008, the proportion of pressure-sterilized cell phones in the hospitals sampled increased significantly from 27.06% in 2006 to 84.51% in 2008; the proportion of chemical disinfectants immersed, wiped and other ways to handle cell phones dropped significantly From 60% in 2006 to about 10% in 2008. After use the cell phone HBsAg antigen test positive rate was 1.65%. Serum dot blot hybridization test, cell phone elution DHBV test negative cases, the animals can still cause animal DHBV infection after transfection, proof of non-sterile cell phone HBsAg antigen test negative and can not rule out the existence of cell phone is still circulating HBV possibility. Conclusion The possibility of cell phone transmission of HBV exists. Sterilization by pressure steam can kill the contaminating HBV on mobile phones.