Gram positive

• Group A,B,C,G Streptococci

• MSSA

• Viridans Streptococci

Gram negative

• Susceptible E. coli

• Susceptible Klebsiella

• Susceptible Proteus

Anaerobic

• None

Notable exceptions

• H. influenzae

• Enterococci

• MRSA

• Atypicals

• Many gram negatives

• Anaerobes