LONDON : The British government faced criticism Saturday for another sudden change in its advice on face coverings that has left those running hospitals in England scrambling to work out how they will be able to meet the new requirements.On Friday, as the World Health Organization broadened its recommendations for the use of masks, Health Secretary Matt Hancock said all hospital staff in England will have to wear surgical face masks from June 15 while visitors and outpatients will need to don some sort of face covering.His announcement came a day after the government said face coverings, which can be made from any fabric, would be mandatory on public transport in England, from the same date to coincide with the planned reopening of.