Gram positive: Staphylococci aureus including 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 and most Streptococci