<prompt> Neisseria meningitidis possesses following virulent factors EXCEPT:CapsuleLipo-oligosaccharideLOSp lactamaseIgA protease cation  <response>: Ans. c b lactamaseRef.: Microbiology by Ananthanarayan and Paniker 8th ed. 224-26 Lipo-oligosaccharide LOS is a component of the outer memberane of N. meningitidis which acts as an endotoxin which is responsible for septic shock and hemorrhage due to the destruction of red blood cells. Other virulence factors include a polysaccharide capsule which prevents host phagocytosis and aids in evasion of the host immune response; and fimbriae which mediate attachment of the bacterium to the epithelial cells of the nasopharynx. Beta-lactumases are enzymes and not virulence factors produced by some bacteria and are responsible for their resistance to beta-lactam antibiotics like penicillins and carbapenems 