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  2. Jun 3, 2021 · The AstraZeneca COVID-19 vaccine, now called Vaxzevria, is a viral vector vaccine, just like the Johnson & Johnson vaccine. It uses a chimpanzee adenovirus to carry spike proteins from the...

  3. Mar 22, 2021 · Results from the long-awaited US trial of the Oxford-AstraZeneca Covid vaccine are out and confirm that the shot is both safe and highly effective. More than 32,000 volunteers took part, mostly...

  4. May 9, 2024 · Learn how the AstraZeneca-Oxford COVID-19 vaccine works, how safe and effective it is, who can get it, and when.

  5. Mar 22, 2021 · Results from a large clinical trial in the United States and South America indicate that AstraZeneca’s COVID-19 vaccine, AZD1222, is well-tolerated and protects against symptomatic COVID-19 disease, including severe disease or hospitalization.

  6. Feb 3, 2021 · The primary analysis of the Phase III clinical trials from the UK, Brazil and South Africa, published as a preprint in The Lancet confirmed COVID-19 Vaccine AstraZeneca is safe and effective at preventing COVID-19, with no severe cases and no hospitalisations, more than 22 days after the first dose.

  7. Nov 24, 2020 · Surprisingly, the vaccine combination in which the first dose was only at half strength was 90 percent effective at preventing Covid-19 in the trial. In contrast, the combination of two,...

  8. Mar 25, 2021 · The US had ordered 300 million doses of the Oxford-AstraZeneca vaccine when it emerged as a frontrunner in the global race to immunise people against Covid-19. But delays and controversies...

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