Spread of Amikacin Resistance in Acinetobacter baumannii Strains Isolated in Spain Due to an Epidemic Strain
| Autor: | Jesus Martinez-Beltran, Sofia Perea, Berta Becerril, Joaquim Ruiz, Teresa Jimenez De Anta, Isabel Alamo, Isabel García, Anna M. Planes, Inmaculada Lopez-Hernandez, Margarita M. Navia, Frederic Ballester, Jordi Vila |
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| Rok vydání: | 1999 |
| Předmět: |
DNA
Bacterial Microbiology (medical) Epidemiology Polymerase Chain Reaction Microbiology law.invention law polycyclic compounds medicine Humans Amikacin Polymerase chain reaction Antibacterial agent Acinetobacter biology Molecular epidemiology Genetic transfer Drug Resistance Microbial Chromosomes Bacterial biochemical phenomena metabolism and nutrition bacterial infections and mycoses biology.organism_classification Anti-Bacterial Agents Acinetobacter baumannii carbohydrates (lipids) Spain Neisseriaceae Acinetobacter Infections medicine.drug |
| Zdroj: | Journal of Clinical Microbiology. 37:758-761 |
| ISSN: | 1098-660X 0095-1137 |
| DOI: | 10.1128/jcm.37.3.758-761.1999 |
| Popis: | Sixteen amikacin-resistant clinical Acinetobacter baumannii isolates from nine different hospitals in Spain were investigated to determine whether the high incidence of amikacin-resistant A. baumannii was due to the dissemination of an amikacin-resistant strain or to the spread of an amikacin resistance gene. The epidemiological relationship studied by repetitive extragenic palindromic PCR and low-frequency restriction analysis of chromosomal DNA showed that the same clone was isolated in eight of nine hospitals, although other clones were also found. The strains were studied for the presence of the aph(3′)-VIa and aac(6′)-I genes, which encode enzymes which inactivate amikacin, by PCR. All 16 clinical isolates had positive PCRs with primers specific for the amplification of the aph(3′)-VIa gene, whereas none had a positive reaction for the amplification of the aac(6′)-I gene. Therefore, the high incidence of amikacin resistance among clinical A. baumannii isolates in Spain was mainly due to an epidemic strain, although the spread of the aph(3′)-VI gene cannot be ruled out. |
| Databáze: | OpenAIRE |
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