Hon CHRIS HIPKINS (Minister for COVID-19 Response): To date, the Pfizer vaccine has been approved for two doses and Medsafe awaits data from Pfizer clinical trials before approving its use for additional doses. The Ministry of Health is in continual discussion with Pfizer and other pharmaceutical companies about New Zealand's future vaccine needs and it continues to review all of the latest scientific evidence. Commercial conversations with the suppliers remain sensitive and I won't be disclosing specific details.