Microbiology The polysaccharide capsule of following bacteria has in role in their infectivity except A Haemophilus influenza B Neisseria meningitides C Streptococcus pneumoniae D Bordetella peussis 💡 Explanation The polysaccharide capsule of following bacteria has in role in their infectivity except ✓ Correct Answer: D. Bordetella peussis