Viridans Streptococci Introduction ,isolation and pathogenesis

Viridans streptococci:
The viridans streptococci are a large group of commensal streptococcal Gram-positive bacteria species that are α-hemolytic, producing a green coloration on blood agar plates (hence the name "viridans", from Latin "vĭrĭdis", green).
Optochin resistant
This group contains-
Streptococcus mutans
Streptococcus salivarius
Streptococcus anginosus
Streptococcus sanguinis
Streptococcus mitis




#Smutans
#mitis
#salivarius
#sanguinis
anginosus