The European Medicines Agency is to give its verdict on whether or not the AstraZeneca Covid-19 vaccine is safe to continue to use today.
Ireland and 12 other EU states suspended the vaccine due to concerns about a possible link to blood clots in a small number of recipients.
The regulator and the World Health Organization have already said the benefits of receiving the vaccine outweigh any potential risk.
A total of 30 cases of unusual blood disorders were reported, out of a population of five million people who had received the vaccine.
In particular, the agency is investigating any potential link between the vaccine and cerebral venous thrombosis, or CVT.
In Germany, seven people aged 20 to 50 were diagnosed with CVT within 16 days of receiving the jab.
However, the EMA has already said this incidence would be the same in the general population even with no vaccination programme.