True statement regarding Pneumococcus is:
Ans. is 'a' i.e., Virulence is due to polysaccharide capsule* Capsular polysaccharide is the principal virulence factor, protects it from phagocytosis. Other virulence factors are toxins (pneumolysin and autolysin).
Virulence is due to polysaccharide capsule
Capsule is protein in nature
Antibodies against capsule are not protective
Resistance to penicillin has not yet been reported
Bacteria