Declining drug resistance of Mycobacterium tuberculosis isolates from elderly patients in Taiwan, 2000-2008.

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
W-L LiuP-R Hsueh

Abstract

We retrospectively investigated the prevalence of drug resistance in Mycobacterium tuberculosis (MTB) isolates recovered from elderly patients and compared the drug resistance patterns between the elderly (≥65 years old) and adult (15-64 years old) patients. Data on the prevalence of drug resistance in clinical and non-duplicate isolates of MTB recovered from 2000 to 2008 were evaluated. Among the 3,186 non-duplicate MTB isolates found during the study period, 1,497 isolates were recovered from elderly patients. Thirty-eight (2.54%) isolates were multidrug-resistant tuberculosis (MDRTB). The rates of resistance to isoniazid (INH), rifampicin (RIF), ethambutol (EMB), streptomycin (SM), ofloxacin, rifabutin, any one drug-resistant (ADR), and multidrug-resistant (MDR) were significantly lower in isolates from the elderly than from adults (p < 0.05). Significant decreasing trends in resistance rates to EMB, SM, at least any one of the four first-line agents (ADR), and MDRTB were observed (p < 0.05) . In conclusion, elderly patients had a lower rate of anti-TB drug resistance than adults and a decreasing overall trend of anti-TB drug resistance was found in the elderly in recent years, but the higher rate of MDRTB in Taiwan continue...Continue Reading

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Citations

Sep 6, 2011·Emerging Infectious Diseases·Chih-Cheng LaiPo-Ren Hsueh
Feb 22, 2014·International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases·Ying YangHe Yan

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