Britain reassures on AstraZeneca after advising under-30s take other vaccines

British officials and ministers sought to shore up confidence in AstraZeneca’s COVID-19 vaccine on Thursday, saying advice that most people under 30 should be offered alternative shots was not unusual and would not impact the pace of rollout. A pharmacist whose brother died from a brain blood clot linked to the AstraZeneca shot was among those calling for people to keep getting it, saying the doses would save lives. Officials said the suggestion that under-30s should be offered an alternative did not reflect any serious safety concerns, just a “vanishingly” rare possible side effect.