JOHANNESBURG, South Africa (AFP) — South Africa on Tuesday suspended the rollout of the Johnson & Johnson Covid-19 vaccine over potential blood clot risks reported by the United States, the health minister said. The announcement delays an already sluggish vaccination campaign in Africa’s worst-hit country, which has so far only administered the US-made jab. “We have determined to voluntarily suspend our rollout until the causal relationship between the development of clots and the Johnson & […]