Investigation of meningitis outbreak after the introduction of Pneumococcal and MenA conjugate vaccines in two districts of Northern Region, Ghana from October 2015 to March 2016

mortality ranges between 2% and 30% [4-6], and that of Ghana is estimated to range from 36% to 50% Several different bacteria can cause meningitis. Beyond the neonatal period, over 90% of infections are caused by Streptococcus pneumoniae (S. pneumoniae), Haemophilus influenza (H. influenza) and Neisseria meningitidis (N. meningitides)