Antimicrobial susceptibility patterns of respiratory Gram-negative bacterial isolates from COVID-19 patients in Switzerland

Gysin, Marina; Acevedo, Claudio Tirso; Haldimann, Klara; Bodendoerfer, Elias; Imkamp, Frank; Bulut, Karl; Buehler, Philipp Karl; Brugger, Silvio Daniel; Becker, Katja; Hobbie, Sven N

doi:10.1186/s12941-021-00468-1

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Gysin, M., Acevedo, C. T., Haldimann, K., Bodendoerfer, E., Imkamp, F., Bulut, K., Buehler, P. K., Brugger, S. D., Becker, K., & Hobbie, S. N. (2021). Antimicrobial susceptibility patterns of respiratory Gram-negative bacterial isolates from COVID-19 patients in Switzerland. Annals of Clinical Microbiology and Antimicrobials, 20, 64. https://doi.org/10.1186/s12941-021-00468-1

Abstract

BACKGROUND

Bacterial superinfections associated with COVID-19 are common in ventilated ICU patients and impact morbidity and lethality. However, the contribution of antimicrobial resistance to the manifestation of bacterial infections in these patients has yet to be elucidated.

METHODS

We collected 70 Gram-negative bacterial strains, isolated from the lower respiratory tract of ventilated COVID-19 patients in Zurich, Switzerland between March and May 2020. Species identification was performed using MALDI-TOF; antibiotic susceptibil