coccus (plural - cocci) are any spherical or near spherical bacteria. When they are formed in pairs they are known as diplococcus, in beadlike chains as streptococcus, in grapelike clusters as staphylococcus, and in groups of eight as (sarcina) Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus_Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Species S. pneumoniae S. pyogenes S. viridans Streptococcus is a genus of spherical, Gram-positive bacteria of the phylum Firmicutes. ... Species S. aureus Staphylococcus (in Greek staphyle means bunch of grapes and coccos means granule) is a genus of gram-positive bacteria. ...

Some diseases that can be caused by coccus-type bacteria: staphylococci infections, food poisoning, urinary tract infections, toxic shock syndrome, meningitis, gonorrhea, throat infections, pneumonia, and sinusitis. Species S. aureus Staphylococcus (in Greek staphyle means bunch of grapes and coccos means granule) is a genus of gram-positive bacteria. ... Foodborne illness or food poisoning is caused by consuming food contaminated with pathogenic bacteria, toxins, viruses, prions or parasites. ... A urinary tract infection is an infection of the urinary tract. ... Toxic shock syndrome (TSS) is a rare but potentially fatal disease caused by a bacterial toxin. ... Meningitis is inflammation of the membranes (meninges) covering the brain and the spinal cord. ... Gonorrhoea (USA spelling: gonorrhea, slang term the clap) is among the most common curable sexually transmitted diseases in the world caused by the Gram-negative bacterium called Neisseria gonorrhoeae. ... Pneumonia (the ancient Greek word for lungs) is defined as an infection involving the alveoli of the lungs. ... Sinusitis is an inflammation, either bacterial, viral or allergic, of the paranasal sinuses. ...