US recommends ‘pause’ for Johnson & Johnson Covid-19 vaccine over clot reports

The Johnson & Johnson Covid-19 vaccine (Mary Altaffer/AP)

The US is recommending a “pause” in administration of the single-dose Johnson & Johnson Covid-19 vaccine to investigate reports of potentially dangerous blood clots.

In a joint statement, the Centres for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) said they were investigating clots in six women that occurred in the days after vaccination.