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This is the short edition of More or Less, first broadcast on the BBC World Service.

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slash podcasts. Hello, this is more or less on the BBC World Service and I'm Tim Harford.

This week I was fortunate enough to speak to Hans Rosling. Hans is professor of

international health at the Carolinska Institute in Sweden. He's also the co-founder and chairman of the

Gapminder Foundation, which tries to make sense of the world's data.

A couple of weeks ago, Hans flew to Liberia to join the fight against Ebola.

I started by asking him what the numbers are currently telling us about

Ebola in Liberia. It's very clear that we are now in a second phase.

Ebola in Liberia started coming over the border into Lofa County.

Then it moved down during the summer and hit the capital Monrovia really badly in August and

September.

But now the numbers in the capital is down, but it's down from

75 a day down to around 25 a day or 20 a day. But now it has stopped. It is no longer falling. It is at an

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