what are the different kinds of strep
The group A streptococcus bacterium is responsible for most cases of streptococcal illness. Other types (B, C, D, and G) may also cause infection. Group B streptococci cause most streptococcal infections in newborns and maternal post-labor/delivery infections.he list of types of Streptococcal Infections mentioned in various sources includes: 1  Strep throat. 2  Group A Streptococcal Infections-most common subtype. 3  Group B Streptococcal Infections. 4  Group C Streptococcal Infections. 5  Group D Streptococcal Infections.