RT Journal Article T1 Surveillance of Drug-Resistant Tuberculosis in Spain (2001-2015). A1 Gutiérrez-Aroca, Juan Bautista A1 Ruiz, Pilar A1 Vaquero, Manuel A1 Causse, Manuel A1 Casal, Manuel K1 mycobacterium K1 resistance K1 tuberculosis AB Multidrug-resistant tuberculosis (MDR-TB) is a cause of increasing concern. This study investigated first-line anti-TB drug resistance in Mycobacterium tuberculosis strains submitted to the Tuberculosis Reference Center in Córdoba (Spain) between 2001 and 2015. A total of 1,207 cultures were tested against first-line drugs using the BACTEC MGIT 960 system. Resistance to first-line drugs was detected in 207 strains (17.2%), the greatest resistance being found in INH (5.3%) followed by streptomycin (3%), pyrazinamide (2.2%), rifampicin (1%), and ethambutol (0.2%). A total of 1.9% of strains were MDR-TB. Six strains displayed resistance to four drugs, and three strains to five drugs. In view of resistance observed, careful surveillance of drug resistance is recommended. YR 2018 FD 2018-04-02 LK http://hdl.handle.net/10668/12296 UL http://hdl.handle.net/10668/12296 LA en DS RISalud RD Apr 6, 2025