Discrepancies in assignment of subtype/recombinant forms by genotyping programs for HIV type 1 drug resistance testing may falsely predict superinfection

被引:11
作者
Ntemgwa, Michel [1 ,2 ]
Gill, M. John [3 ]
Brenner, Bluma G. [1 ]
Moisi, Daniela [1 ]
Wainberg, Mark A. [1 ,2 ]
机构
[1] McGill Univ, Jewish Gen Hosp, Lady Davis Inst, McGill AIDS Ctr, Montreal, PQ H3T 1E2, Canada
[2] McGill Univ, Dept Expt Med, Montreal, PQ H3T 1E2, Canada
[3] Univ Calgary, Dept Microbiol & Infect Dis, Calgary, AB, Canada
关键词
D O I
10.1089/aid.2008.0064
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
With the growing diversity of the HIV pandemic, routine genotyping is an important tool for monitoring viral subtype as well as drug resistance. In this regard, numerous subtyping tools and drug resistance algorithms are available online. However, there are discrepancies in the use of these online tools in the designation of HIV-1 subtypes or recombinant forms that may have an impact on drug susceptibility profiles. Indeed, inconsistencies in some of these tools may lead to a false designation of dual infection and/or superinfection. In this case study, we evaluated the sequence diversity of an infection that was referred to us as a potential case of superinfection as a result of variations in designation of subtype. We evaluated sequences using five different online tools and finally determined by phylogenetic analysis that the sequence was a unique A1/C intersubtype recombinant at baseline and not a case of superinfection.
引用
收藏
页码:995 / 1002
页数:8
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