covid vaccine being developed by pharmaceutical company AstraZeneca and Oxford University, were suspended on Tuesday after a participant developed an unexplained illness.
The Oxford vaccine was seen among the most advanced experimental Covid-19 vaccines that are already in late-stage Phase 3 trials.Russia had last month approved a vaccine, and research published in The Lancet medical journal last week said patients involved in early tests developed antibodies with "no serious adverse events." But scientists cautioned the trials were too small.A spokesperson for the AstraZeneca vaccine said in a statement Tuesday that "we voluntarily paused vaccination to allow review of safety data by an independent committee.