Hon CHRIS HIPKINS: I note that only one country so far has actually started to administer booster shots, and that's Israel. In terms of whether we have supplies to do booster shots, we already have enough orders of vaccine coming in order to start a booster campaign, and it would be well into next year before we needed to have additional supplies in order to service a third roll-out of vaccine to New Zealanders. So we already have several million vaccines that will be available to start a booster shot campaign, if we decide to do that. But, again, I would note that we'll follow the science on that, rather than the marketing of the pharmaceutical companies. 