translation.en: After general hygiene improvements – first of all clean water supply – vaccines represent the most effective and cost-saving public health intervention.
translation.ga: Tar éis feabhsúcháin ar shláinteachas ginearálta – soláthar glan uisce i dtús báire – tá vacsaíní ar an mbealach is éifeachtaí agus is lú costais maidir le hidirghabháil sláinte poiblí.