Business News Pfizer ends Covid-19 trial with 95% efficacy Pfizer said there had been 170 cases of the disease in its trial of more 43,000 volunteers. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related UAE reports 1,292 Covid cases, 890 recoveries, 4 deaths Boeing 737 Max to fly again after bring grounded since March 2019