Gram positive

•  Streptococci group A/B/C/G/F

•  S. pneumoniae

•  S. anginosus group

•  E. faecalis

Gram negative

•  N. meningitidis

Anaerobic

•  Actinomyces

•  Clostridia

•  Peptostreptococci

Other

• Treponema pallidum