Coronavirus vaccine final-stage testing to restart in US

AstraZeneca and Johnson & Johnson get go-ahead from Food and Drug Administration after pausing studies when volunteers became ill

Two drugmakers have announced the resumption of US testing of their Covid-19 vaccine candidates.

Testing of AstraZeneca's vaccine candidate had been halted since early September, while Johnson & Johnson's vaccine study was paused at the beginning of last week. Each company had a study volunteer develop a serious health issue, requiring a review of safety data.