Vaccine protection against Covid waning in some older people, Niac warns 

Dr Karina Butler will tell the Oireachtas Health Committee that older people in nursing homes are having a “poorer response” to the first two vaccine doses and their immunity is “more rapidly waning because of their age and underlying medical conditions”.

A return to restrictions cannot be ruled out despite the success of the vaccination programme, chief medical officer Tony Holohan is warning.

Dr Holohan has thrown a significant curveball just days ahead of the Government's planned further easing of restrictions.