is_manufactured_by vaccine immunization against microbe Neisseria meningitidis MenHibrix YH a vaccine for active immunization to prevent invasive disease caused by Neisseria meningitidis serogroups C and Y and Haemophilus influenzae type b. MENHIBRIX is approved for use in children 6 weeks of age through 18 months of age. Haemophilus influenzae serotype b vaccine GlaxoSmithKline Biologicals