Coronavirus vaccines: 'Encouraging' early data for some, a trial delay for another and more research ahead - CNN

Scientists around the world are racing to develop Covid-19 vaccines and there's news almost daily about steps forward -- this week, there was "encouraging" preliminary data for some vaccine candidates and word from top health officials that the United States… https://www.cnn.com/2020/07/02/health/coronavirus-vaccine-moderna-pfizer-inovio-astrazeneca-roundup/index.html