Health officials are being urged to keep its priorities in order for the vaccine roll-out.
Medsafe has granted the provisional green light for 12 to 15-year-olds to receive the Covid-19 Pfizer vaccine.
Cabinet will review Health Ministry advice, before deciding whether to administer doses to the new age group.
Immunisation Advisory Centre Director Nikki Turner told Heather du Plessis-Allan it's a good idea to offer as much protection as possible - but teens aren't the most important sector to vaccinate.
"The important group to vaccinate right now for the New Zealand is adults, and particularly high-risk adults, and not teenagers."
She says that it is unlikely we will achieve herd immunity, but we can hope to vaccinate as many as possible, and vaccinating teenagers will be a key part of that.