Camille Jacqueline, Corrado Minetti, Sara Monzon Fernandez, Leonor Silveira, Isabel Cuesta De La Plaza, Ângela Pista, Silvia Herrera-Leon
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Genomic Epidemiology of Fluoroquinolone-Resistant Strains of Shigella sonnei and Shigella flexneri in the Iberian Peninsula From 2015 to 2022.
Fluoroquinolone resistance in Shigella is among the serious antimicrobial resistance threats. We investigated the genomic epidemiology of fluoroquinolone-resistant (FQR) strains of S sonnei and S flexneri from 2015 to 2022 in Spain and Portugal. We determined the antimicrobial resistance profiles of 416 isolates (S flexneri and S sonnei), and FQR isolates were subjected to whole genome sequencing. The percentage of FQR isolates gradually increased to reach 38% and 80% of S flexneri and S sonnei isolates, respectively, in 2022. S sonnei isolates from men were significantly more likely to be FQR (relative risk, 4.9; 95% CI, 2.7-9.0). Genomic analysis revealed 2 major genetic clusters of FQR S sonnei from the CipR.MSM5 lineage, previously associated with extreme antimicrobial resistance and transmission in men having sex with men. This study contributes to a better understanding of FQR shigellosis transmission and highlights the added value of enhanced surveillance for these pathogens.
期刊介绍：
Published continuously since 1904, The Journal of Infectious Diseases (JID) is the premier global journal for original research on infectious diseases. The editors welcome Major Articles and Brief Reports describing research results on microbiology, immunology, epidemiology, and related disciplines, on the pathogenesis, diagnosis, and treatment of infectious diseases; on the microbes that cause them; and on disorders of host immune responses. JID is an official publication of the Infectious Diseases Society of America.
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