The chairman of Pfizer has said he is not yet sure whether their new vaccine will stop the spread of coronavirus. In an interview for NBC's Dateline prime-time special titled “Race for a Vaccine”, Albert Bourla admitted he was 'not certain' it would stop Covid-19 from being transmitted.
The Pfizer/BioNTech Covid-19 vaccine has been declared safe for use and is one of the three leading candidates that have led the desperate global search for a way to end the pandemic.
The first batches are already enroute to Britain today, as the UK hopes for millions of doses by the end of the year. It will shortly become the first vaccine to be rolled out in the UK, after Moderna and Oxford AstraZeneca's jabs were also declared effective.