Parents are being advised to reduce their children's activities over the remainder of the Halloween midterm.
The Deputy Chief Medical Officer says precautions should be taken to the recent rise in Covid-19 cases.
4,393 cases were reported in children aged 5-12 in the two weeks to last Monday, compared to 2,930 over a similar period earlier this month.
Dr. Ronan Glynn says trick or treating can still go ahead but reducing frequency needs to be considered:
