Emergence of increased resistance and extensively drug-resistant tuberculosis despite treatment adherence, South Africa.
Emergence of increased resistance and extensively drug-resistant tuberculosis despite treatment adherence, South Africa.
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DOI：
10.3201/eid1602.090968
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发表时间：
2010-02
影响因子：
11.8
通讯作者：
Victor TC
中科院分区：
文献类型：
--
作者：
Calver AD;Falmer AA;Murray M;Strauss OJ;Streicher EM;Hanekom M;Liversage T;Masibi M;van Helden PD;Warren RM;Victor TC
Improved infection control, rapid diagnostic tools, enhanced screening strategies, and pharmacokinetic studies are needed. We investigated the emergence and evolution of drug-resistant tuberculosis (TB) in an HIV co-infected population at a South African gold mine with a well-functioning TB control program. Of 128 patients with drug-resistant TB diagnosed during January 2003–November 2005, a total of 77 had multidrug-resistant (MDR) TB, 26 had pre–extensively drug-resistant TB (XDR TB), and 5 had XDR TB. Genotyping suggested ongoing transmission of drug-resistant TB, and contact tracing among case-patients in the largest cluster demonstrated multiple possible points of contact. Phylogenetic analysis demonstrated stepwise evolution of drug resistance, despite stringent treatment adherence. These findings suggested that existing TB control measures were inadequate to control the spread of drug-resistant TB in this HIV co-infected population. Diagnosis delay and inappropriate therapy facilitated disease transmission and drug-resistance. These data call for improved infection control measures, implementation of rapid diagnostics, enhanced active screening strategies, and pharmacokinetic studies to determine optimal dosages and treatment regimens.
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影响因子：
168.9
作者：
Van Rie, A;Warren, R;Van Helden, PD
通讯作者：
Van Helden, PD
影响因子：
9.4
作者：
Kamerbeek, J;Schouls, L;vanEmbden, J
通讯作者：
vanEmbden, J
影响因子：
6.4
作者：
van Rie, A;Warren, RM;van Helden, PD
通讯作者：
van Helden, PD
影响因子：
9.4
作者：
Mphahlele, Matsie;Syre, Heidi;Grewal, Harleen M. S.
通讯作者：
Grewal, Harleen M. S.
影响因子：
11.8
作者：
Pillay, Manormoney;Sturm, A. Willem
通讯作者：
Sturm, A. Willem