Explainer: How worried should we be about blood clots linked to AstraZeneca and J&J vaccines?
Zurich, SwitzerlandReuters US regulators have recommended pausing the use of Johnson & Johnson’s COVID-19 vaccine as they investigate rare blood clotting in six women, including one who died. J&J also said it was delaying the rollout of its vaccine in Europe. US officials said the temporary halt is expected only to last a few days. […]