Can I say that I think the debate about the severity of omicron does miss the point, to an extent? The sheer numbers of people who will fall ill with the omicron variant means that even if it were to be less severe, that will not stop the huge increase in demand that there may be there from people falling ill. One of the deputy chief medical officers for England explained it at a COBRA meeting in this way: that if omicron was only half as severe as delta, that buys you 48 hours in terms of the impact that omicron will have on our public services. So, it's a sort of secondary issue, rather than the top-line issue, which is the transmissibility of omicron, and I don't think that the evidence as it's being reported in some newspapers today is quite as straightforward as they are making out. The evidence that I have seen—. I add the normal caveat here, which I know the leader of the opposition will understand, that new evidence is emerging every day. The evidence I have seen so far is that if you've had coronavirus already, then omicron may have a less severe impact on you if you are reinfected, but if you're getting coronavirus for the first time and your first dose of it is omicron, it's likely to be just as severe as any other earlier form of the virus. 

As to train services, Transport for Wales is running as many trains as it possibly can with the number of staff available to it, and the position across other parts of the United Kingdom is affected just as we are affected here in Wales. In a way, that takes me to one of Andrew Davies's later questions. Of course, we are as concerned about omicron knocking out large numbers of people who need to be in the workplace, in private businesses and in public services, alongside those people who fall so seriously ill that only a hospital bed will be sufficient for them. Both of those things are really important.

We have moved today to the new regime for people who are contacts of people who have coronavirus. The health Minister has advice in front of her today on a potentially different regime for people who are suffering directly from the virus, but she will want to look at the advice from our own chief medical officer and others, and I know she'll come to her decision as soon as she is able to. I do know that that advice has already gone to her, and it'll be part of what she will be doing today.

Can I thank the leader of the opposition for an early opportunity to lay to rest some of the stories that have circulated about the workplace? Because this is really a story without a substance. As the leader of the opposition said, we are reinstating rules that we had earlier in the pandemic. These are not new rules in that sense. They are rules we have used before. They are there to create a level playing field where employers and employees both know the rights and the responsibilities that they have. They are designed to protect workers, not to penalise them. When we had those rules in place earlier in the pandemic, there is no record that we have been able to find of anybody being fined. They are there to make sure that everybody understands the regulations. And when I was at the shadow social partnership council earlier today, employers welcomed the regulations because the regulations themselves are helpful, even if the reporting of them has not been. And I'm very grateful to the Confederation of British Industry and other employer organisations and to trade unions and the Trades Union Congress for all the help they are giving us in making sure that workplaces and workers understand what the rules really are and what they are there to do. 

I'm afraid that the impact of people falling out of the workplace and of the pressures on the NHS mean that elective surgery is having to be suspended in some parts of Wales. There is a local decision-making framework that allows health boards to calibrate that in their own circumstances and they are able to begin elective surgery again when the circumstances allow them to do so.

I'm sorry to hear that people feel that the process of becoming a vaccinator is frustrating. We are reducing it to the bear minimum that we think is safe. If somebody is giving somebody else a vaccine, we do need to know that they are properly trained to do it. The rules that are there for booster vaccines and for vaccinating children, for example, are different to the ones that would have been there in the first wave of vaccination. And we do need to make sure that people have the training that they need to be able to vaccinate safely. I am hugely grateful to those hundreds of people who have come forward. We don't have a problem of supply of vaccinators and vaccines in Wales at the moment—we're able to vaccinate everybody who comes forward. Where we do still have an issue is with people coming forward. There was an 18 per cent did-not-attend rate in some vaccination centres in Wales yesterday. That's nearly one in every five people not coming forward when they're invited. And if we could persuade those people to make their appointment their top priority, that would really help us to get that protection out there to as many people as possible.

Finally, Llywydd, I think it's only Israel that has moved to a comprehensive fourth booster vaccination programme and that only today. But Israel has been ahead of other countries all they way through the vaccination process. We are indeed looking at the evidence of how long the current booster offers you the maximum protection. And if it does turn out that it is a waning protection and we need to do more later into next year, then, of course, alongside other parts of the United Kingdom, we will look to put such a programme in place. Thank you very much.