Short communication: Transmitted HIV drug resistance in antiretroviral-naive pregnant women in north central Nigeria

AIDS Res Hum Retroviruses. 2014 Feb;30(2):127-33. doi: 10.1089/aid.2013.0074. Epub 2013 Nov 22.

Abstract

The World Health Organization (WHO) recommends periodic surveillance of transmitted drug resistance (TDR) in communities in which antiretroviral therapy (ART) has been scaled-up for greater than 3 years. We conducted a survey of TDR mutations among newly detected HIV-infected antiretroviral (ARV)-naive pregnant women. From May 2010 to March 2012, 38 ARV-naive pregnant women were recruited in three hospitals in Jos, Plateau state, north central Nigeria. Eligible subjects were recruited using a modified version of the binomial sequential sampling technique recommended by WHO. HIV-1 genotyping was performed and HIV-1 drug resistance mutations were characterized according to the WHO 2009 surveillance drug resistance mutation (SDRM) list. HIV subtypes were determined by phylogenetic analysis. The women's median age was 25.5 years; the median CD4(+) cell count was 317 cells/μl and the median viral load of 16 was 261 copies/ml. Of the 38 samples tested, 34 (89%) were successfully genotyped. The SDRM rate was <5% for all ART drug classes, with 1/34 (2.9%) for NRTIs/NNRTIs and none for protease inhibitors 0/31 (0%). The specific SDRMs detected were M41L for nucleoside reverse transcriptase inhibitors (NRTIs) and G190A for nonnucleoside reverse transcriptase inhibitors (NNRTIs). HIV-1 subtypes detected were CRF02_AG (38.2%), G' (41.2%), G (14.7%), CRF06-CPX (2.9%), and a unique AG recombinant form (2.9%). The single ARV-native pregnant woman with SDRMs was infected with HIV-1 subtype G'. Access to ART has been available in the Jos area for over 8 years. The prevalence of TDR lower than 5% suggests proper ART administration, although continued surveillance is warranted.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Cluster Analysis
  • Drug Resistance, Viral*
  • Female
  • Genotype
  • HIV Infections / epidemiology*
  • HIV Infections / transmission*
  • HIV Infections / virology
  • HIV-1 / classification
  • HIV-1 / genetics
  • HIV-1 / isolation & purification*
  • Humans
  • Molecular Sequence Data
  • Nigeria / epidemiology
  • Phylogeny
  • Pregnancy
  • Pregnancy Complications, Infectious / epidemiology*
  • Pregnancy Complications, Infectious / virology
  • RNA, Viral / genetics
  • Sequence Analysis, DNA
  • Young Adult

Substances

  • RNA, Viral

Associated data

  • GENBANK/KC755236
  • GENBANK/KC755237
  • GENBANK/KC755238
  • GENBANK/KC755239
  • GENBANK/KC755240
  • GENBANK/KC755241
  • GENBANK/KC755242
  • GENBANK/KC755243
  • GENBANK/KC755244
  • GENBANK/KC755245
  • GENBANK/KC755246
  • GENBANK/KC755247
  • GENBANK/KC755248
  • GENBANK/KC755249
  • GENBANK/KC755250
  • GENBANK/KC755251
  • GENBANK/KC755252
  • GENBANK/KC755253
  • GENBANK/KC755254
  • GENBANK/KC755255
  • GENBANK/KC755256
  • GENBANK/KC755257
  • GENBANK/KC755258
  • GENBANK/KC755259
  • GENBANK/KC755260
  • GENBANK/KC755261
  • GENBANK/KC755262
  • GENBANK/KC755263
  • GENBANK/KC755264
  • GENBANK/KC755265
  • GENBANK/KC755266
  • GENBANK/KC755267
  • GENBANK/KC755268
  • GENBANK/KC755269