The EU has introduced controls on the export of COVID-19 vaccines from the bloc to Northern Ireland - sparking an angry response from First Minister Arlene Foster.
The EU is accusing pharmaceutical companies of prioritising vaccine supplies to the UK.
Luis has cystic fibrosis and desperately needs a drug called Orkambi to help his condition. But UK's NHS says it's too expensive for them to provide.
Drug giants could quit the UK unless the NHS gets more funding.