Gram positive: Staphylococci incl. many Methicillin resistant Staphylococcus aureus (MRSA), Listeria
Gram negative: Many enterobacteriaceae, Neisseria meningitidis, Stenotrophomonas, Shigella, Burkholderia, Franciscella, Brucella
Other: Pneumoncystis, cyclospora and Nocardia
Does not cover: Pseudomonas, anaerobes, Enterococci, variable activity against Streptococci