The World Health Organization (WHO) said it trusted people's uncertainty about AstraZeneca 's Covid-19 vaccine could be overcome, following its temporary suspension in several countries in Europe and around the world on fears of blood clotting, the Deutsche Presse Agentur (DPA) reported. "It's a great vaccine," WHO expert Bruce Aylward said on Friday. The WHO said people would be reassured that the safety and monitoring systems in place had proved ...