A family taking part in a pioneering coronavirus vaccine trial don't know which of them have actually been given the jab. They have been comparing symptoms since being given the vaccine - as they don't know who was given the placebo and who was injected with the real deal.
The Vineys are among more than 1,000 participants involved the groundbreaking testing at the University of Oxford. Dad Tony, mum Katie and daughter Rhiannon have all been injected in the past week and have to keep a diary to track their progress.
Half of the trial volunteers will receive the potential COVID-19 vaccine while the other half will get a placebo which protects against meningitis.