Vaccination with Haemophilus influenzae type b conjugate vaccine reduces bacterial meningitis in Morocco

► Morocco introduced Hib containing vaccine in 2007. ► We analyzed bacterial meningitis surveillance data from 11 sentinel hospitals. ► Hi meningitis case reports decreased by 75% from 2004-2006 to 2008-2009. ► Hi meningitis incidence in Grand Casa Prefecture decreased by 93%. ► Hib vaccine introduction likely significantly reduced Hi meningitis in Morocco.