Pneumonia vaccine 'to save thousands of lives'

A vaccine against pneumonia - the world's biggest killer of children - is being introduced in Africa and other poor countries across the world.

But one of the world's richest women - Melinda Gates - has warned that children will continue to die of preventable illnesses unless governments pledge more money for immunisation.

She was speaking on a visit to Kenya, from where the BBC's health correspondent Fergus Walsh sent this report.