Published in:
Open Access
01-05-2022 | Streptococci | Brief Report
Antimicrobial activity of dalbavancin against Gram-positive bacteria isolated from patients hospitalized with bloodstream infection in United States and European medical centers (2018–2020)
Authors:
Helio S. Sader, Mariana Castanheira, Michael D. Huband, Dee Shortridge, Cecilia G. Carvalhaes, Rodrigo M. Mendes
Published in:
European Journal of Clinical Microbiology & Infectious Diseases
|
Issue 5/2022
Login to get access
Abstract
Dalbavancin and comparators were susceptibility tested against 8643 Gram-positive bacteria from 74 hospitals located in Europe and the United States by broth microdilution method. The most common organisms were Staphylococcus aureus (45.2%), Enterococcus faecalis (12.2%), and Staphylococcus epidermidis (8.9%), but rank order varied markedly by geographic region. Dalbavancin demonstrated potent activity and broad spectrum, with MIC90 values of 0.03 mg/L for Staphylococcus aureus, β-haemolytic streptococci, and viridans group streptococci; 0.06 mg/L for Enterococcus faecalis and Staphylococcus epidermidis; and 0.12 mg/L for vancomycin-susceptible Enterococcus faecium. All organisms, except vancomycin-resistant enterococci and 1 Staphylococcus haemolyticus isolate, were inhibited at ≤ 0.25 mg/L of dalbavancin.