How to make sense of reports on Covid-19 vaccine effectiveness

"So what should you make of all this? Well, if you are offered a vaccine - any vaccine - take it enthusiastically."

By Mark Toshner, University of Cambridge Via RTE

I feel desperately sorry for the public trying to make head or tail of some of the scientific discussions on the pandemic right now. Science is being done, disseminated, argued about – sometimes peer-reviewed if we are lucky – and then immediately rewritten days later. Even with some experience – I’m a clinician-scientist – it’s hard to keep up. Data and reports come thick and fast, with little time to assess what they really mean.
One particularly fast-moving topic at the moment is vaccine efficacy. The emerging data from vaccination programmes looks great and seems to strongly back up the findings of clinical trials...........
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