Hon CHRIS HIPKINS: Medsafe, who are the first step in the process, gazetted the decision yesterday to approve the use of booster doses for people aged 18 and older, at least six months after the first dose. That's the first step in the process. The next step is for the COVID-19 Technical Advisory Group and the Ministry of Health to provide advice to the Government that will help to inform the use of booster doses. That will include whether there should be any age limits, the interval between the second dose and the booster dose, and so on. We understand that the health and border workforce are particularly concerned about whether or not they'll be needing a booster dose, and so we're working towards providing them that reassurance as soon as we can. I would note that the trials by Pfizer had a median interval between the second dose and the booster dose of 11 months, and no New Zealanders are currently in that category. 