True statement regarding Pneumococcus is:: (A) Virulence is due to polysaccharide capsule, (B) Capsule is protein in nature, (C) Antibodies against capsule are not protective, (D) Resistance to penicillin has not yet been reported
Answer is A. 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).