(Reuters) – The frontrunners in the COVID-19 vaccine race have emerged with different success rates for their shots in clinical trials, but what does that mean for the global fight against the pandemic? U.S. drugmakers Pfizer-BioNtech and Moderna have each said their coronavirus vaccines have an efficacy rate of around […]
vaccines
This article is reproduced with permission from Scientific American. It was first published on November 19, 2020. Find the original story here. Two drug companies have now reported highly successful results from phase III trials of COVID-19 vaccines. On November 18 Pfizer and partner BioNTech said their vaccine was 95 […]
Two drugmakers announced Friday the resumption of U.S. 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, […]