evidence: Suddenly, panic over 5G—the newest generation of mobile telecommunications infrastructure—and the notion that it’s the true cause of the coronavirus pandemic seems to be everywhere. In recent days there have been suspected arson attacks on mobile phone masts in Birmingham, Liverpool and Merseyside. Celebrities have pushed the idea that 5G is harmful and linked to Covid-19. The government has been forced to address the fears, with Michael Gove branding the theories "dangerous nonsense". To be clear, these theories are wrong. As you'll see from our fact checks linked throughout this article, there's no connection between 5G and coronavirus, and no evidence of any health risk from 5G. But it's not clear that simply dismissing them is the right approach. Given the upheaval the coronavirus pandemic has caused, people are understandably worried and looking for answers. And to give those answers well, we'll need to understand where these theories come from. [...] The other main theory is that Covid-19 symptoms were actually "mass injury" from 5G. Some pushing this theory also deny basic medical facts, in claiming that you can’t "catch a virus". There are, of course, multiple respiratory illnesses spread by coughs and sneezes, that are caused by viruses.