Global and regional distribution of HIV-1 genetic subtypes and recombinants in 2004
Global and regional distribution of HIV-1 genetic subtypes and recombinants in 2004
复制标题
DOI:
10.1097/01.aids.0000247564.73009.bc
复制
发表时间:
2006-10-24
期刊:
影响因子:
3.8
通讯作者:
Osmanov, Saladin
中科院分区:
文献类型:
--
作者:
Hemelaar, Joris;Gouws, Eleanor;Osmanov, Saladin
Objective: To estimate the global and regional distribution of HIV-1 subtypes and recombinants in 2004.Design: A study was conducted in which molecular epidemiological data on HIV-1 subtype distribution in individual countries were combined with country-specific estimates of the number of people living with HIV.Methods: HIV-1 subtype data were collected for 23 874 HIV-1 samples from 70 countries, which together accounted for 89% of all people living with HIV worldwide in 2004. The proportions of HIV-1 infections due to various subtypes detected in each country were combined with the number of HIV infected people in the respective countries to generate regional and global HIV-1 subtype distribution estimates.Results: Subtype C accounted for 50% of all infections worldwide in 2004. Subtypes A, B, D and G accounted for 12%, 10%, 3% and 6%, respectively. The subtypes F, H, J and K together accounted for 0.94% of infections. The circulating recombinant forms CRF01_AE and CRF02_AG each were responsible for 5% of cases, and CRF03_AB for 0.1%. Other recombinants accounted for the remaining 8% of infections. All recombinant forms taken together were responsible for 18% of infections worldwide.Conclusion: Combining data on HIV-1 subtype distribution in individual countries with country-specific estimates of the number of people living with HIV provided a good method to generate estimates of the global and regional HIV-1 genetic diversity in 2004. The results could serve as an important resource for HIV scientists, public health officials and HIV vaccine developers.