Study Period Patient Population N Any mutation (%) NNRTI (%) NRTI (%) PI (%)    Reference
2011 Treatment naïve women 351 7.4 5.7 2.0 0.6 Parikh et al. [13]
2010 HIV surveillance 72 0.0 0.0 0.0 0.0 Manasa et al. [17]
2009 ANC Survey 47 <5.0 <5.0 (2.1) <5.0 <5.0 Parboosing et al. [14]
2009 ANC Survey 47 5-15 5-15 <5.0 <5.0 Hunt et al. [15]
2008* ANC Survey 37 13.5 8.1 5.4 2.7 Hunt et al. [15]
2007 ANC Survey 34 <5.0 <5.0 <5.0 <5.0 Hunt et al. [15]
2005* ANC Survey 40 2.5 2.5 ND ND Hunt et al. [15]
2003 Treatment naïve adults 56 <5.0 <5.0 (2.1) <5.0 <5.0 Gordon et al. [16]
* The threshold level could not be determined because of insufficient numbers of samples genotyped.
N - number of patients genotyped; NNRTI - Non-nucleoside reverse transcriptase inhibitor; ND - not determined; NRTI - nucleoside reverse transcriptase inhibitor; PI - protease inhibitor;
Table 1: Surveillance of transmitted drug resistance (TDR) studies from KwaZulu-Natal (KZN), South Africa.
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