Firmicutes is a phylum of bacteria.
Most species in this phylum are Gram-positive. Pathological Mycobacteriaceae and Nocardiaceae species are acid-fast.
Classification
Domain : Prokaryota, Bacteria
Kingdom : Bacteria
Phylum : Firmicutes (mostly Gram-positive)
Class : Actinobacteria (Mostly Gram-positive, some acid-fast).
Class : Bacilli (Gram-positive)
Class : Clostridia (Gram-positive)
Class : Mollicutes (absence of a cell wall)
Pathology
- Tropheryma whipplei : Whipple disease, endocarditis
- Corynebacterium diphtheriae : Diphtheria
- Mycobacterium leprae : Leprosy
- Mycobacterium lepromatosis : Leprosy
- Mycobacterium tuberculosis : Tuberculosis
- Mycobacterium ulcerans infection : Buruli ulcer
- Nocardia asteroides : Nocardiosis
- Nocardia brasiliensis : Nocardiosis
- Cutibacterium acnes : Acne vulgaris
- Gardnerella vaginalis : Bacterial vaginosis
- Bacillus anthracis : Anthrax
- Bacillus cereus : Food poisoning
- Listeria monocytogenes : Listeriosis
- Staphylococcus aureus : Impetigo, wound infections, UTIs
- Staphylococcus saprophyticus : UTIs
- Enterococcus species : UTIs
- Streptococcus anginosus
- Streptococcus agalactiae
- Streptococcus bovis
- Streptococcus dysgalactiae
- Streptococcus pneumoniae : Community-acquired pneumonia, meningitis
- Streptococcus pyogenes : Impetigo, rheumatic fever
- Clostridium botulinum : Botulism
- Clostridium difficile : C. difficile infection
- Clostridium perfringens : Clostridial myonecrosis (gas gangrene)
- Clostridium tetani : Tetanus
- Mycoplasma genitalium : Pelvic inflammatory disease (PID)
- Mycoplasma hominis : Pelvic inflammatory disease (PID), bacterial vaginosis
- Mycoplasma pneumoniae : Mycoplasma pneumonia
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