There are a few things, not just from Australia but from other countries in the southern hemisphere. Their first wave coincided, essentially, with their normal flu season. They saw a real burden on their ICUs, for example. They saw a similar pattern of disease. In other words, there was a large percentage of disease in the very young and there was the impact that has. We've not seen a change in the virus yet. Influenza is unpredictable. We don't know when the virus might mutate into a slightly different strain. Again, that's one of the reasons we have an adjuvanted vaccine, primarily, in Canada that potentially can protect against changes in the virus itself.
On October 26th, 2009. See this statement in context.