Dr. Colm Henry:

If I may add to that, and Professor Butler may want to come on this, the information is not available. We do not have the information yet, as Professor Butler described earlier. As this vaccine rolls out across European and worldwide healthcare systems, we will acquire more information, not just on the primary aim to reduce morbidity and mortality but that it reduces transmission, which is the aim we all want to see achieved, and thereby gives immunity to the population. We do not have information on this yet. That information will evolve and inform what a vaccination certificate actually is for individuals and wider society in terms of the social restrictions that are in place.