Just 50,000 People Will Receive Their Vaccine Injections This Week After The Suspension Of The Astra-Zeneca Dose 

It follows four serious blood clot cases in Norway

The doctors in charge of the vaccine drive here want to be sure the four serious blood clot cases - one of them fatal -- are nothing more than a coincidence. 

AstraZeneca says the rate of blood clot cases among the 17-million vaccinated in the EU and UK is actually lower than normal and there's no evidence it's the cause. 

The vaccines could be back in use by next weekend if a rapid review by the European Medicines Agency clears them. 

Health Minister Stephen Donnelly says the National Immunisation Advisory Council is right to make absolutely sure: