<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.utawala wa chakula na dawa wa amerika huenda ukaidhinisha katikati ya desemba usambazaji wa chanjo hiyo iliyotengenezwa na pfizer, kulingana na afisa mkuu wa juhudi za ukuzaji wa chanjo ya serikali ya amerika.  <response>: the u.s. food and drug administration is likely to approve in mid-december the distribution of the vaccine made by pfizer, according to a top official of the u.s. governments vaccine development effort. 