In a previous speech, I spoke about the lowering of sick leave levels—which my colleague Helen White has just mentioned—when people do stay home. I mentioned this little tool, and I have a graph—I haven't quite figured out how to do A3 printing in this House yet. I have a little graph from the Ministry of Health's flu tracker survey. What it clearly shows is in 2019, we had very high levels of reported influenza symptoms. In 2020, when people stayed home, those symptoms dropped right down. Again, in 2021, because the message has got through to stay home when you're sick, these rates are continuing to track along the same trajectory as last year, which is a really, really good thing. 