What does it mean for the rest of the island?
Deputy Chief Medical Officer Ronan Glynn has said the Covid-19 situation in Northern Ireland is of "real concern".
Hospitals are operating at 105 per cent capacity - with doctors forced to treat patients in ambulances at Antrim Area Hospital yesterday.
What knock on effect could this have for the rest of the island?
Joining me now is Professor Karina Butler, Chair of the National Immunisation Advisory Committee, Consultant Paediatrician and Infectious Disease Expert.
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