Pfizer/BioNTech vaccine announcement is cause for cautious celebration
Interim trial results are encouraging as scientists welcome news
It is not yet the end of the pandemic, but the announcement by Pfizer/BioNTech that their vaccine has been 90% successful in the vital large-scale trials has got even the soberest of scientists excited.
These are interim results and the trial will continue into December to collect more data. The two companies – a tiny German biotech with the big idea and the giant pharma company Pfizer with the means to develop it – have not yet published their detailed data, so it is all on trust. And yet, nobody is suggesting the results have been over-egged. It looks as though the vaccine not only works, but works better than anyone hoped.