Gram positive
- Most Streptococci
- Enterococcus faecalis
- Staphylococcus aureus (MSSA)
Gram negative
- Pasteurella multocida
- Some Enterobacterales
- Neisseria species
- Haemophilus
- Moraxella
Anaerobes
- Bacteroides fragilis
- Prevotella
- Clostridia
- Peptostreptococcus
- Actinomyces