This is a summary of 672 English timelines from 2023-05-03 00:00:00 to 2023-05-03 01:00:00 UTC.

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Title: "COVID-19 vaccine developed by Oxford University appears to be safe and triggers immune response, early results suggest"

Content: Early results from a Phase 1/2 trial of a COVID-19 vaccine developed by Oxford University have shown that it appears to be safe and induces an immune response. The vaccine, called ChAdOx1 nCoV-19, uses a harmless virus to deliver genetic material from the coronavirus to the body's cells, which then prompts the immune system to produce a response. The trial involved 1,077 healthy volunteers aged 18 to 55, and showed that the vaccine stimulated the production of both antibodies and T-cells. The researchers cautioned that more research is needed to determine the vaccine's effectiveness, and that there are no guarantees that it will be successful. The UK government has already ordered 100 million doses of the vaccine, with production beginning even before the trial's results were known.

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