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- Title
In vitro Activity of Ceftaroline Against Isolates of Gram-Positive Bacteria from Patients with Bloodstream Infections Collected as a Part of ATLAS Between 2017 and 2020.
- Authors
Kempf, Marie; Arhin, Francis F; Kuraieva, Alona; Utt, Eric
- Abstract
Purpose: To assess the in vitro activity of ceftaroline and a panel of comparator agents against isolates of Gram-positive bacteria, including Staphylococcus aureus, Streptococcus pneumoniae, β-hemolytic streptococci, and coagulase-negative staphylococci (CoNS) from blood collected in Africa and Middle East (AfME), Asia Pacific (APAC), Europe, Latin America (LATAM), and North America from 2017 to 2020 as a part of the Antimicrobial Testing Leadership and Surveillance (ATLAS) program.Methods: Susceptibility and minimum inhibitory concentration were determined using broth microdilution for all antimicrobial agents by a central reference laboratory according to the Clinical and Laboratory Standards Institute (CLSI) and European Committee on Antimicrobial Susceptibility Testing (EUCAST) guidelines.Results: Ceftaroline showed good activity (susceptibility ≥ 89.8%, MIC90 0.008– 2 mg/L) against all Gram-positive isolates tested. All isolates of methicillin-susceptible S. aureus, penicillin-susceptible S. pneumoniae, S. agalactiae, S. dysgalactiae, and S. pyogenes were susceptible to ceftaroline (MIC90 0.008– 0.25 mg/L). Ceftaroline susceptibility for MRSA isolates was 89.8% globally (MIC90 2 mg/L). Among the comparator agents, all isolates were susceptible to vancomycin, except S. epidermis (susceptibility, 99.9%). Among other agents, daptomycin, linezolid, and tigecycline showed potent activity (susceptibility ≥ 97.9%, MIC90 0.03– 2 mg/L) against all isolates tested.Conclusion: Ceftaroline showed potent in vitro activity against global bloodstream isolates of Gram-positive bacteria collected between 2017 and 2020. Monitoring and surveillance of global as well as regional longitudinal trends of resistance rates among Gram-positive isolates causing bloodstream infections are important to limit the spread of AMR, establish stewardship measures, and manage and appropriately treat infections.
- Subjects
GRAM-positive bacteria; CEFTAROLINE; STREPTOCOCCUS pneumoniae; METHICILLIN-resistant staphylococcus aureus; ANTI-infective agents; MICROBIAL sensitivity tests; STAPHYLOCOCCUS aureus
- Publication
Infection & Drug Resistance, 2024, Vol 17, p343
- ISSN
1178-6973
- Publication type
Article
- DOI
10.2147/IDR.S423004