The UN Children’s Fund (UNICEF) backs vaccination programmes in over 95 countries with the support of partners and through the “sheer determination” of volunteers.
They have so far reached around 45 per cent of the world’s young children.
And they have made the journey to some of the remotest parts of the globe in often unconventional ways.
Read more here about how health workers are going the extra mile to ensure the safety of young people.
