1Department of Microbiology, Faculty of Medicine, Universitas Sumatera Utara, Medan, North Sumatra, Indonesia 2Siloam Hospital Medan, Medan, North Sumatra, Indonesia DOI 10.7717/peerj.19510 Academic Editor Sonia Oliveira Subject Areas Microbiology, Epidemiology, Infectious Diseases Keywords Bacteria, Identification, Antimicrobial agents, Susceptibility test, Prevalence, Multidrug-resistant organism, Polymicrobial isolates Copyright © Licence This is an open access article distributed under...