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目的查明艾滋病患者的感染途径。方法利用河南省病例网络直报系统,对艾滋病患者中感染途径不详者进行专项流行病学调查。结果共调查感染途径不详病例726例,调查率为81.7%。查明感染途径病例443例,占调查病例的61.0%。其中性接触感染41.6%(184例),既往有偿供血感染28.2%(125例),既往输注血液/血制品感染23.7%(105例),母婴传播3.6%(16例),注射毒品2.9%(13例)。结论艾滋病网络直报系统中大部分感染途径不详的病例通过进一步调查可以查明感染途径,应提高病例报告和个案流行病学调查的质量。
Objective To identify ways of HIV infection. Methods The case-based direct reporting system of Henan Province was used to conduct a special epidemiological investigation on HIV-infected patients with unknown pathways of infection. Results A total of 726 cases of unknown infection were investigated, the investigation rate was 81.7%. 443 cases of infection were identified, accounting for 61.0% of the investigated cases. Among them, there were 41.6% (184 cases) of sexual contact infection, 28.2% (125 cases) of past payment of blood supply, 23.7% (105 cases) of past blood transfusions, 3.6% (16 cases) of mother-to-child transmission and 2.9 % (13 cases). Conclusion Most cases of HIV infection in the direct reporting system of HIV infection can be identified through further investigation. The quality of case reports and case-based epidemiological investigations should be improved.