View source for List of Organisms (Microbiology)

Gram Positive Bacilli

* Clostridium (see anaerobes)
* Bacillus
** '''Bacillus anthracis'''
** '''Bacillus cereus'''
** Bacillus spp.
* '''Listeria monocytogenes'''
* '''Erysipelothrix rhusiopathiae'''
* '''Lactobacillus'''
* '''Corynebacterium/Diphtheroids'''
** '''C. diphtheriae'''
** '''C. jeikeium'''
** C. minutissimum
** C. ulcerans
** '''C. urealyticum'''
* '''Arcanobacterium haemolyticum'''
* '''Gardnerella vaginalis'''
* Mobiluncus spp.
* '''Nocardia'''

Yeasts

* '''Candida spp.'''
** '''C. albicans'''
** '''C. dubliniensis'''
** '''C. auris.'''
** C. tropicalis
** C. parapsilosis
** C. glabrata
** C. krusei
* Cryptococcus neoformans
* Rhodotorula spp.

Fastidious Gram Negative Bacteria

* '''Neisseria spp.'''
** '''Neisseria gonorrhea'''
** '''Neisseria meningitidis'''
** Neisseria lactamica
* '''Moraxella catarrhalis'''
* Haemophilus spp.
** Haemophilus influenzae
** Haemophilus ducreyi
** Haemophilus parainfluenzae
** Aggregatibacter spp.