What is the role of bacteria in causing disease? also, What is bacteria (types of cells,domains,kingdoms)?

Bacteria classification:


-Kingdom - Monera


-Phyla -


Actinobacteria


Aquificae


Chlamydiae


Bacteroidetes/Chlorobi


Chloroflexi


Chrysiogenetes


Cyanobacteria


Deferribacteres


Deinococcus-Thermus


Dictyoglomi


Fibrobacteres/Acidobacteria


Firmicutes


Fusobacteria


Gemmatimonadetes


Lentisphaerae


Nitrospirae


Planctomycetes


Proteobacteria


Spirochaetes


Thermodesulfobacteria


Thermomicrobia


Thermotogae


Verrucomicrobia





Role in disease:


Although the vast majority of these bacteria are rendered harmless or beneficial by the protective effects of the immune system, a few pathogenic bacteria cause infectious diseases, including cholera, syphilis, anthrax, leprosy and bubonic plague.