Samoa's Health Ministry has resumed MMR vaccinations, after a moratorium was placed in the wake of the death of two toddlers in July.
Health Minister Tuitama Talalelei Tuitama said new safety measures mean the mistakes of the past will not be repeated.
Tuitama told Talamua Online that as part of the lifting of the ban, which happened earlier this month, doctors will now be present when vaccinations are carried out.
He said if there was no parental consent, babies would not be immunised.
Tuitama said there was concern that if the ban was kept in place, measles, mumps and rubella could spread.
Police have charged nurses Luse Emo Tauvale and Leutogi Te'o with manslaughter over the deaths in July.