Staphylococcus aureus, koagulase negative Staphylokokken, Streptococcus epidermidis, Streptococcus pneumoniae, Streptococcus pyogenes, Streptococcus viridans, Haemophilus influenza, Moraxella spp., Corynebacterium diphteriae, Acinetobacter sp., Escherichia coli, Klebsiella pneumoniae, Morganella morganii, Proteus sp. Pseudomonas aeruginosa, Serratia marcescens, Capnocytophaga