[Infectiology] Bacteria

Taxonomy 

• Bacteria 

Bacteria is a domain and kingdom of microscopic organisms. Bacteria are prokaryotes.
They are usually unicellular, although they often form biofilms and work in cooperation, like cells in a multicellular organism. 
Most species are usually beneficial or harmless to humans. Many can cause disease in humans (pathogenic). 

 

Classification

Domain : Prokaryota, Bacteria   

Kingdom : Bacteria 

Phylum : Bacteroidetes (All Gram-negative)

Phylum : Chlamydiae (All Gram-negative)

Phylum : Firmicutes (Most are Gram-positive, some are acid-fast) 

Phylum : Fusobacteria (All Gram-negative) 

Phylum : Proteobacteria (All Gram-negative)

Phylum : Spirochaetes (All Gram-negative)

 

See also

• Gram stain