![Fauci downplayed earlier comments about the UK approval of Pfizer's vaccine](https://s.wsj.net/public/resources/images/FN-AL953_FN_Fau_M_20201204034915.jpg)
US health chief Dr Anthony Fauci has backtracked on criticism of UK health regulators for the speed at which they approved the Pfizer-BioNTech Covid-19 vaccine.
Fauci said that the UK’s quick review risked public confidence and said the US’s slower approach was more thorough.