They studied each patient from when their symptoms started - not just when they were admitted to hospital - and instead of relying on large databases, they carefully studied every aspect of each patient's medical history.
The Bristol study initially found the Pfizer vaccine was 71.4% effective in preventing hospital admissions in over-80s when they started the study in December, when the rollout began. Countries including France, Germany and Spain have not allowed people over 65, or 55 in Spain's case, to be given the AstraZeneca vaccine, leaving doses languishing in stores.
We have summarized this news so that you can read it quickly. If you are interested in the news, you can read the full text here. Read more:
United Kingdom Latest News, United Kingdom Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.