There has been a rise in cases of influenza and high levels are expected between Christmas and the New Year, according to interim Chief Medical Officer Professor Mary Horgan.
Notified cases of influenza increased by 67% to 277 in the last week. Prof Horgan said the incidence is highest in those aged one to four years, followed by those aged 80 and older.
Last week, 73 cases were hospitalised, compared to the previous week. Prof Horgan has urged people to avail of the free flu and Covid-19 vaccines from participating GPs and pharmacies.
The uptake of the nasal spray flu vaccine for children is currently at just under 16%. Among adults over 60 years, the uptake for the flu vaccine is over 58%.