evidence: Coronavirus digest: Sweden halts AstraZeneca vaccine use March 16, 2021Sweden is pausing vaccinations against COVID-19 using AstraZeneca's vaccine as a precautionary measure, the country's health agency has announced. AstraZeneca, which was founded through the merger of a British and Swedish firm, has already seen its vaccine paused in a number of European countries amid growing concerns about possible serious side-effects.