The HSE is looking into the possible link between the shingles vaccines and a lowered risk of dementia.
The Oireachtas Health Committee was told today a free shingles vaccine programme for over 65s would cost 218 million euro.
A previous HIQA assessment found the vaccine is safe and effective, but did not consider it cost effective at the current price.
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Chief Medical Officer Mary Horgan from Tralee says she has asked HIQA to keep evaluating other benefits of the vaccine:
