Here's Why The Trial Of Oxford's COVID-19 Vaccine Put On Hold

The trial of Covid-19 vaccine being developed by AstraZeneca and University of Oxford has been put on hold due to a a serious adverse reaction in a participant in the UK. Stat News reported that a large, Phase 3 study testing a Covid-19 vaccine being developed by AstraZeneca and the University of Oxford at dozens of sites across the US has been put on hold due to a suspected serious adverse reaction in a participant in the United Kingdom.