The Covid-19 vaccine developed by Oxford University and AstraZeneca gives good immune responses in older people, even if there is a lack of data about its exact efficacy, Oxford’s vaccine trial chief Andrew Pollard said on Wednesday.
Fact‑first reporting that puts you at the heart of the newsroom. Subscribe for full access.
- Unlimited access to all premium content
- Uninterrupted ad-free browsing experience
- Mobile-optimized reading experience
- Weekly Newsletters
- MPesa, Airtel Money and Cards accepted