Director General of Health Dr Ashley Bloomfield said medical centres in New Zealand will be reminded all children under 18 should be vaccinated for measles regardless of their citizenship.
Checkpoint revealed a 15-month-old Samoan toddler had been denied a measles vaccine at an Auckland clinic because he did not have a New Zealand passport.
Dr Bloomfield is also warning people, especially children, not to travel to Samoa during the epidemic.
It comes as the death toll rose to 55 and a Samoan Opposition MP calls for a public inquiry.
Lisa Owen talks to Checkpoint's Logan Church in Apia.