Rare blood clotting concerns about Johnson & Johnson vaccine

The single dose Johnson & Johnson Covid-19 vaccine. Ireland was expected to receive its first doses of the J&J vaccine before the end of April, with some 605,000 doses due to arrive here by the end of June. File Picture

Fresh concerns have emerged about the single-shot Covid-19 vaccine from Johnson & Johnson, which is expected to play a major part in the Irish vaccine roll-out.

The European Medicines Agency yesterday announced a review assessing reports of rare blood clotting in people who received the vaccines.