US health authorities are calling for a pause free cialis sample in the use of the Johnson & Johnson Covid-19 vaccine, after reports of extremely rare blood clotting cases.
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”.
Johnson & Johnson said it was also delaying vaccine rollout in Europe.
The US move follows similar rare cases in the AstraZeneca vaccine, which has prompted some curbs in its use.
The US has by far the most confirmed cases of Covid-19 – more than 31 million – with more than 562,000 deaths, another world high.