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Volunteer in Oxford coronavirus vaccine trial dies, reportedly did not receive experimental vaccine

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RIO DE JANEIRO — A Brazilian who participated in the clinical trial of an experimental coronavirus vaccine has died, officials here said Wednesday.

Brazil’s National Health Surveillance Agency, which is overseeing multiple vaccine trials in a country suffering one of the world’s worst outbreaks, said the individual volunteered to receive the vaccine candidate developed by Oxford University and produced by AstraZeneca.

The Brazilian newspaper O Globo, citing unnamed sources, reported that the volunteer was in a control group that did not receive the experimental vaccine and died of covid-19. The news service G1 said the volunteer was a 28-year-old physician who treated coronavirus patients in Rio de Janeiro.

The National Health Surveillance Agency said it was informed of the volunteer’s death Monday. The agency said AstraZeneca’s international safety committee had recommended the trial continue.

Under the trial’s protocol, half the participants receive the experimental vaccine, and half receive an established meningitis vaccine that has been proved safe. The trial, like others, is overseen by an independent board that reviews all adverse events. Any severe event that might have been caused by the vaccine would trigger a pause in the study for an investigation. The trial is not paused due to the death. ...

 

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