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

The more I find out about an influenza pandemic and the lack of readiness, the more I am concerned. But I am more hopeful about the scope for international cooperation.

H5N1 is causing a massive epidemic of lethal avian influenza.

We have to do the utmost to maintain this relationship.

This is not the start of the pandemic. The start of the pandemic starts when there is human to human transfer, confirmed and sustained.

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.