Additional testing of Pfizer‘s coronavirus vaccine has determined that it is even more effective than it was . when it was first announced last week, the pharmaceutical giant said Wednesday. . The vaccine could be authorized “within days” as Covid-19 cases and deaths are trending in the wrong direction. The vaccine’s distribution process has not been detailed and begs the question of who will be among the first recipients. . The answer, though, has thus far been elusive as statistics suggest that Black an