<prompt> In which of the following organism the capsule does not act as a virulence factor?H. influenzaeStrept pneumoniaeN. meningitidisBordetella pertussis  <response>: Ans. is d i.e., Bordetella pertussisRef: Harrison, 19the, p. 1021 and Ananthanarayan, 9the, p. 333Capsule of B. pertussis is not virulence factor of pertussis as Pertussis toxin PT - Most impimportant. Virulence factor. 