sciencemag.org
94%
568
After dosing mix-up, latest COVID-19 vaccine success comes with big question mark
Jon CohenScience’s COVID-19 reporting is supported by the Pulitzer Center and the Heising-Simons Foundation.Enthusiasm and confusion greeted announcements this week about the efficacy of a vaccine candidate from the University of Oxford and AstraZeneca, which is now the fourth to report preliminary results of success in press releases.“It’s very good to have positive results from different platforms,” says Ana Maria Henao Restrepo, who is leading an effort at the World Health Organization to stage COVID-19 trials that compare different vaccines’ efficacy.