GAVI noted that Nigeria introduced pentavalent vaccine and projected that 72 GAVI-eligible countries will be using this life-saving vaccine by 2013 in their routine immunisation systems. GAVI described Nigeria as “highly strategic” in efforts reach the final 20% of the world’s children who still do not have access to routine immunisation. Nigeria, which is Africa’s most populous country, accounts for an estimated 1.7 million of the 19.3 million children who did not receive routine immunisation in 2010. GAVI also noted that next year, Nigeria is set to introduce pneumococcal vaccines, and when the pentavalent and pneumococcal vaccines are fully rolled out, Nigeria’s child mortality rate “will drop by an estimated 17%, preventing some 30 000 child deaths every year.”

http://www.gavialliance.org/library/news/gavi-features/2012/nigeria-launches-pentavalent-vaccine/