Functions of Saliva
Saliva is a secretion of salivary glands. Contains maximum water content (99.5%) and 0.5% solids. Includes solid content like organic, inorganic and gases also. Various...
Virulence factors of Group-A Streptococcus
Streptococcus are gram positive, catalase negative cocci. Are spherical or ovoid, 0.5-1µ in diameter, arranged in chains, non-motile and non-sporing. They may become gram negative...