Gram positive: Streptococci, usually Methicillin sensitive Staph aureus

Gram negative: most enterobacteriaceae, Neisseria meningitidis, Moraxella, Haemophilus influenzae, Legionella, Pasteurella

Anaerobic: most including Bacteroides fragilis, and non-difficile Clostridia

Other: Mycoplasma, Chlamydophila

Does not cover: Some Staph aureus including MRSA, Pseudomonas, many Enterococci