Countries pledge $4.3bn to fund child vaccinations

So the money has been pledged and the delegates are heading home. GAVI wanted $3.7bn and ended up with $4.3bn.

The Microsoft founder and philanthropist Bill Gates described it as an "incredible milestone". This from a man who today, as he has done repeatedly, put his money where his mouth is. The Gates Foundation donated an extra $1bn. He described vaccines as "magic" when he came and spoke to me.

I've been given the final numbers on who gave what. The figures are startling.

They are all in dollars.

The UK has pledged an extra $1335m.

Norway $677m

USA $450m

Sweden $201m

Netherlands $175m

Australia $149m

France $146m

Germany $73m

Italy $25m

There are a few more but it demonstrates clearly just how much the UK is at the forefront of donations.

So how will this do down with the public in the UK and internationally?

Do you feel proud that the UK is leading the way? David Cameron said there was a moral case for keeping promises to the poorest nations in the world that aid spending would not be cut.

He said it was a question of values and our sense of duty to others said something about us.

I'm sitting listening to Bill Gates and he described the donations today as "human generosity at it's finest".

But outside of the conference, not everyone will be happy about increasing spending on Africa at a time when people are seeing their incomes shrink and facing cuts in social services.

What's your view? Please leave a comment.

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Media captionMicrosoft tycoon Bill Gates on why vaccines are magic

In case you didn't get a chance to see it, here is my report from Sierra Leone.

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Media captionThe BBC's medical correspondent, Fergus Walsh, has been to Sierra Leone to see what progress is being made in improving child health