The choice between the health worker or caregiver administration model is based on the availability of personal protective equipment (PPE) for health workers. GAVA recommends that VAS be administered by trained health workers wearing medical masks, incorporating additional steps into the usual VAS administration protocol as described in the GAVA guide. However, where medical masks are not available in sufficient quantities, health workers should maintain 1-2m distance from caregivers and children. In this scenario, the caregiver administration model must be employed to allow the health worker to maintain physical distancing from the child and caregiver.