Last week it emerged that 220,000 people aged 60-69 chose not to register for a COVID-19 vaccine.
According to the latest Amárach poll, one in five respondents were non-committal about their plan to take the vaccine.
But why is vaccine hesitancy becoming more of a problem as time goes by?
Orla Muldoon, professor of psychology at the University of Limerick, and journalist Larissa Nolan joined us to discuss this.