Genomic Insight into the Spread of Meropenem-Resistant Streptococcus pneumoniae Spain-ST81, Taiwan
| Autor: | Yi-Yin Chen, Yu-Chia Hsieh, Yu-Nong Gong, Wei-Chao Liao, Shiao-Wen Li, Ian Yi-Feng Chang, Tzu-Lung Lin, Ching-Tai Huang, Cheng-Hsiu Chiu, Tsu-Lan Wu, Lin-Hui Su, Ting-Hsuan Li, Ya-Yu Huang |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Emerging Infectious Diseases, Vol 26, Iss 4, Pp 711-720 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1080-6040 1080-6059 |
| DOI: | 10.3201/eid2604.190717 |
| Popis: | Incidence of invasive pneumococcal disease caused by antimicrobial-resistant Streptococcus pneumoniae types not included in pneumococcal conjugate vaccines has increased, including a penicillin- and meropenem-resistant serotype 15A-ST63 clone in Japan. During 2013–2017, we collected 206 invasive pneumococcal isolates in Taiwan for penicillin and meropenem susceptibility testing. We found serotypes 15B/C-ST83 and 15A-ST63 were the most prevalent penicillin- and meropenem-resistant clones. A transformation study confirmed that penicillin-binding protein (PBP) 2b was the primary meropenem resistance determinant, and PBP1a was essential for high-level resistance. The rate of serotype 15B/C-ST83 increased during the study. All 15B/C-ST83 isolates showed an ermB macrolide resistance genotype. Prediction analysis of recombination sites revealed 12 recombination regions in 15B/C-ST83 compared with the S. pneumoniae Spain23F-ST81 genome. Pneumococcal clones rapidly recombine to acquire survival advantages and undergo local expansion under the selective pressure exerted by vaccines and antimicrobial drugs. The spread of 15B/C-ST83 is alarming for countries with high antimicrobial pressure. |
| Databáze: | Directory of Open Access Journals |
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