Gavi currently works in 73 countries to save children’s lives by increasing equitable use of vaccines in the world’s poorest countries (the number will reduce as countries graduate from Gavi support). Gavi immunises children against vaccine preventable diseases including measles, rubella, cervical cancer (via the human papilloma virus vaccine) and certain types of pneumonia and diarrhoea. Pneumonia and diarrhoea are two of the biggest causes of deaths among children in the developing world and cervical cancer is a leading cause of death for women in Africa. Gavi will also have an important role to play if effective vaccines are produced against malaria and ebola. During 2016-2020, Gavi will in particular target reaching those in hard to reach areas in its target countries. Gavi also works with manufacturers to reduce the cost of vaccines for countries. The UK investment through Gavi will immunise an additional 75 million children against diseases and save over 1.25 million lives.