Because it is moving and because we believe wild birds are implicated, predicting where it's going to flare up next is a very tricky thing to do, and being able to know the scale of the flare-up is also quite tricky.

It seems to kill a very large proportion of the birds that it infects. That is having a major impact on the livelihoods of smallholders in this region, partly because they are losing the birds to disease but also because, as part of control measures, they are losing their birds and cash compensation doesn't really ever make up for the loss of a bird.

We must still maintain utmost vigilance for and preparations for the next human influenza pandemic.

A lot of that money is now being spent in Indonesia, Vietnam Cambodia, countries in central and eastern Europe, Turkey, Nigeria and Central Asia.

Fingers-crossed, it's going to be a good-sized pledge. I think most of the countries are aware of the seriousness and the need to move money to poor countries.

Fingers-crossed it's going to be a good-sized pledge.