The world is full of fake news, nowhere more so than when it comes to scientific issues, so science journalists must develop a keen sense of scepticism. We look at why it’s so important to keep a clear head and search out the facts.

THE LONG READ: With a new variant of COVID-19 sweeping the world, putting healthcare systems under strain, good science journalism has never been more important. This is our guide to how to report responsibly, accurately and ethically on scientific issues.