A small religious group with a pre-existing objection to vaccination is the only group exempted from the new "no jab no pay" rule in Australia.
And the government is keen to keep it that way.
Read more:
• NZ won't follow Australia with 'no jab, no pay' policy
• 'No jab, no pay' policy for Aussies
Social Services Minister Scott Morrison won't name that group, lest it promote a sudden rush in membership.
"There is only one, it is a very small religion and I am not about to encourage people to line up with it just to get another crack at an exemption," he said on the Nine Network.