Rare blood clotting

US agencies call for pause in Johnson & Johnson vaccine

The Food and Drug Administration (FDA) said six cases in 6.8 million doses had been reported and it was acting "out of an abundance of caution".

Following the news, South Africa, the first country to use the jab, said it would suspend its rollout.

Johnson & Johnson said it would also delay its vaccine drive in Europe.

The US move follows similar rare cases in the AstraZeneca vaccine, which has prompted some curbs in its use.