Llywydd, we had a presentation at COBRA this morning from Dido Harding, the person who is in charge of the testing regime in England. I'm afraid it is going to be a number of weeks, from what I heard, before the lighthouse lab system is back up to the level of performance that we saw only a few weeks ago. In the meantime, there are some local experiments of the sort that Adam Price referred to being undertaken, and we will certainly look to see whether any of that flexibility could be applied in Wales. And, yes, ventilation will be an increasingly important theme as we go into the winter months, where people will be indoors more and where those non-medical interventions that can help to prevent the spread of the disease will be even more important, and the Welsh Government will certainly be emphasising that in the guidance we continue to provide to public authorities and to private businesses.