CNS/Meningitis
Streptoccous pneumoniae
Neisseria meningitidis
Haemophilus influenzae
Group B streptococcus/ Ecoli (young)
Listeria (young/old)
Mouth
Viridans group streptococcus
Gram Positive Anaerobe Mouth flora - Peptostreptoccous
Gram Negative Anaerobe Rod- Protevella
Upper Respiratory Tract
Streptococcus pneumoniae
Streptococcus pyogens
Haemophilus influenzae
Moraxella catarrhalis
Lower Respiratory Tract (community)
Streptococcus pneumoniae
Haemophilus influenzae
Atypicals: Legionella, Myclopasma, Chlamydophilia
Enteric GNR (alcoholics)
Lower Respiratory Tract (hospital)
Staphylococcus aureus, including MRSA
Pseudomonas Aeruginosa
Acinetobacter baumannii
Enteric GNR (including ESBL, MDR)
Streptococcus pneumoniae
Heart/Endocarditis
Staphylococcus aureus, including MRSA
Staphylococcus epidermis
Streptococci
Enterococci
Intra-abdominal
Enteric GNR- Enteroccoci, Streptoccoci
Bacteroides species
Urinary Tract
Proteus, E.coli, Klebsiella
Staphylococcus saprophyticus
Enterococci
Bone/Joint
Staphylococcus aureus
Staphylococcus epidermis
Streptococci
Neisseria gonorrhoeae
GNR (only in specific situations)
Skin/Soft Tissue
Staphylococcus aureus
Streptococcus pyogenes
Staphylococcus epidermidis
Posteurella multocida
+/- aerobic/anaerobic GNR (in diabetes)