目的评价HIV抗原/抗体联合检测快速法(VIDAS HIV Duo Quick)和超敏法(VIDAS HIV Duo Ultra)试剂的特异性及敏感性。方法用这2种试剂和HIV抗体参比试剂,分别检测287份HIV感染或疑似感染者样品、1240份非HIV感染者血清/血浆样品,对与参比...目的评价HIV抗原/抗体联合检测快速法(VIDAS HIV Duo Quick)和超敏法(VIDAS HIV Duo Ultra)试剂的特异性及敏感性。方法用这2种试剂和HIV抗体参比试剂,分别检测287份HIV感染或疑似感染者样品、1240份非HIV感染者血清/血浆样品,对与参比试剂检测结果不一致样品,进行抗体的确认及HIV p24抗原和RNA的检测,并比较其特异性和敏感性。用这2种试剂和HIV-1p24抗原参比试剂,分别检测3株病毒培养上清的系列稀释样品,并比较其检测p24抗原敏感性的差异。结果共检测1277份HIV抗体阴性样品和250份HIV抗体阳性样品,与参比试剂相比,快速法试剂的特异性为99.45%,敏感性为100%,而超敏法试剂的特异性为99.14%,敏感性为99.20%。两种试剂检测病毒株培养上清的敏感性均不低于HIV-1p24抗原参比试剂,且能检出HIV感染窗口期样品。结论这2种试剂在增加HIV p24抗原检测的情况下,对HIV抗体检测的特异性和敏感性均没有明显降低,并且能检测出HIV感染窗口期样品。展开更多
To investigate HIV genotypes isolated from blood donors in Beijing, the samples positive for anti-HIV antibody with ELISAwere confirmed by HIV blot. All 26 samples were confirmed positive for anti-HIV antibody. RNA fr...To investigate HIV genotypes isolated from blood donors in Beijing, the samples positive for anti-HIV antibody with ELISAwere confirmed by HIV blot. All 26 samples were confirmed positive for anti-HIV antibody. RNA from those samples were detected with RT-PCR. 20 of them were positive for HIV RNA. The purified PCR products were cloned. The sequences were determined and analyzed. The results showed that 10 of 20 isolates were CRF BC, 9 of them were genotype B, 1 of them were CRF AE. 6 of 9 genotype B belong to B’(Thailand B), the remaining 3 isolates may belong to western genotype B. The results indicated that several different genotypes of HIV which are predominant in China may exist in Beijing. This result may be helpful for the development of HIV vaccine in Beijing.展开更多
文摘目的评价HIV抗原/抗体联合检测快速法(VIDAS HIV Duo Quick)和超敏法(VIDAS HIV Duo Ultra)试剂的特异性及敏感性。方法用这2种试剂和HIV抗体参比试剂,分别检测287份HIV感染或疑似感染者样品、1240份非HIV感染者血清/血浆样品,对与参比试剂检测结果不一致样品,进行抗体的确认及HIV p24抗原和RNA的检测,并比较其特异性和敏感性。用这2种试剂和HIV-1p24抗原参比试剂,分别检测3株病毒培养上清的系列稀释样品,并比较其检测p24抗原敏感性的差异。结果共检测1277份HIV抗体阴性样品和250份HIV抗体阳性样品,与参比试剂相比,快速法试剂的特异性为99.45%,敏感性为100%,而超敏法试剂的特异性为99.14%,敏感性为99.20%。两种试剂检测病毒株培养上清的敏感性均不低于HIV-1p24抗原参比试剂,且能检出HIV感染窗口期样品。结论这2种试剂在增加HIV p24抗原检测的情况下,对HIV抗体检测的特异性和敏感性均没有明显降低,并且能检测出HIV感染窗口期样品。
文摘To investigate HIV genotypes isolated from blood donors in Beijing, the samples positive for anti-HIV antibody with ELISAwere confirmed by HIV blot. All 26 samples were confirmed positive for anti-HIV antibody. RNA from those samples were detected with RT-PCR. 20 of them were positive for HIV RNA. The purified PCR products were cloned. The sequences were determined and analyzed. The results showed that 10 of 20 isolates were CRF BC, 9 of them were genotype B, 1 of them were CRF AE. 6 of 9 genotype B belong to B’(Thailand B), the remaining 3 isolates may belong to western genotype B. The results indicated that several different genotypes of HIV which are predominant in China may exist in Beijing. This result may be helpful for the development of HIV vaccine in Beijing.