The Director General of Health agrees there's plenty to be nervous about around the Covid-19 vaccine rollout.

An audit of the Ministry of Health programme says it has a high-level plan, but there's still a lot of work to do.

The Auditor-General isn't yet confident all the pieces will fall into place before things change up a gear for delivery to the general population from July.

Dr Ashley Bloomfield told Heather du Plessis-Allan that the rollout is ambitious and it has many moving parts.

“There are risks around the supply, which is think we are managing very well. There is a big challenge ahead to scale-up to somewhere between 50 and 70 thousand vaccinations every day of the week.”

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