BREAKING: Janssen’s single-dose Covid vaccine has been authorised by the U.K. medicines regulator. The JCVI has yet to say who will receive the jab. Doses not yet available here. Use of the vaccine was paused in the US last month after 6 cases of rare clots in nearly 7 m doses.

— Fergus Walsh (@BBCFergusWalsh) May 28, 2021