The enumerators will travel out to all the provinces in the coming week to interview parents and caregivers, and health workers - all important partners to ensure all children receive vital vaccines by the time they celebrate their first birthday.
According to UNICEF Pacific, partner organisations carrying out this survey include Youth Challenge Vanuatu, Vanuatu Family Health Association and Vanuatu National Youth Council.
Despite significant increases in coverage rates achieved through the Expanded Programme on Immunisation challenges remain.
These relate to human resources, geography, and remoteness of rural communities that mean at least one in five ni-Vanuatu children do not have reliable access to vaccines.
Photo UNICEF Caption: Youth enumerators