Another human trial of a COVID-19 vaccine, this one by the University of Oxford, has shown promising results. New research on how children can spread the virus. The cost of the government's contact tracing app. And a run on face masks.
The University of Oxford has reported its vaccine is safe and effective after the first round of human trials. It says the vaccine is producing a strong immune response and only minor side effects.
None of the 1077 participants recorded serious adverse reactions.