Characteristics of drug-resistant tuberculosis in Abkhazia (Georgia), a high-prevalence area in Eastern Europe
Authors
Pardini, MNiemann, S
Varaine, F
Iona, E
Meacci, F
Orrù, G
Yesilkaya, H
Jarosz, T
Andrew, P
Barer, M
Checchi, F
Rinder, H
Orefici, G
Rüsch-Gerdes, S
Fattorini, L
Oggioni, M R
Bonnet, M
Affiliation
Dipartimento di Malattie Infettive, Parassitarie e Immunomediate, Istituto Superiore di Sanità, Rome, Italy; Forschungszentrum Borstel National Reference Center for Mycobacteria, Borstel, Germany; Medecins Sans Frontieres, Paris, France; Dipartimento di Biologia Molecolare, Universita` di Siena, Italy; Dipartimento di Scienze Odontostomatologiche, Universita` di Cagliari, Italy; University of Leicester, United Kingdom; 3Es (Essai clinique Evaluation Epidemiologie Statistiques), Paris, France; London School of Hygiene and Tropical Medicine, London, United Kingdom; LGL, Oberschleibheim, Germany; Epicentre, Geneva, SwitzerlandIssue Date
2009-06-18Submitted date
2010-10-15
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TuberculosisAbstract
Although multidrug-resistant (MDR) tuberculosis (TB) is a major public health problem in Eastern Europe, the factors contributing to emergence, spread and containment of MDR-TB are not well defined. Here, we analysed the characteristics of drug-resistant TB in a cross-sectional study in Abkhazia (Georgia) between 2003 and 2005, where standard short-course chemotherapy is supplemented with individualized drug-resistance therapy. Drug susceptibility testing (DST) and molecular typing were carried out for Mycobacterium tuberculosis complex strains from consecutive smear-positive TB patients. Out of 366 patients, 60.4% were resistant to any first-line drugs and 21% had MDR-TB. Overall, 25% of all strains belong to the Beijing genotype, which was found to be strongly associated with the risk of MDR-TB (OR 25.9, 95% CI 10.2-66.0) and transmission (OR 2.8, 95% CI 1.6-5.0). One dominant MDR Beijing clone represents 23% of all MDR-TB cases. The level of MDR-TB did not decline during the study period, coinciding with increasing levels of MDR Beijing strains among previously treated cases. Standard chemotherapy plus individualized drug-resistance therapy, guided by conventional DST, might be not sufficient to control MDR-TB in Eastern Europe in light of the spread of "highly transmissible" MDR Beijing strains circulating in the community.PubMed ID
19539531Type
ArticleLanguage
enISSN
1873-281Xae974a485f413a2113503eed53cd6c53
10.1016/j.tube.2009.04.002
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