AstraZeneca Covid vaccine: weighing up the risks and rewards

Despite scientific advice to continue getting the jab, answers about fatal blood clots are urgently neededCoronavirus – latest updatesSee all our coronavirus coverageVaccines have side-effects, as do all medicines. Most often, jabs cause sore arms, a headache or a bit of nausea – none of which would be very significant when weighed against the toll of a serious virus such as Covid-19.But sometimes the risk-benefit calculation may look less simple, as in the case of Oxford/AstraZeneca