Pfizer/BioNTech to seek emergency vaccine approval in US Friday

An emergency use authorization request for the Covid-19 vaccine developed by Pfizer and BioNTech was expected to be filed with the FDA Friday, the US government and BioNTech’s co-founder said. The BioNTech/Pfizer shot and another one being developed by US firm Moderna have taken the lead in the global chase for a vaccine, after large-scale trial data this month showed that their jabs were around 95 percent effective against Covid-19.