there is a test, or at least I hope so because the UK has announced we've bought 3.5M of them https://www.bbc.co.uk/news/health-51943612 https://www.bbc.co.uk/n

there is a test, or at least I hope so because the UK has announced we've bought 3.5M of them https://www.bbc.co.uk/news/health-51943612 https://www.bbc.co.uk/news/health-51943612