The people who think coronavirus is caused by 5G
The idea that 5G could have health implications isn't new. But conspiracy theories linking 5G with Covid-19 went viral during lockdown.
By May, one survey found 20% believed to some extent that the virus is a hoax.
Major health organisations have said that 5G is safe and that there's no link between it and coronavirus. But while most of the UK was isolating at home, anti-5G protesters took to the streets.
Where did this theory come from? And where will it end?
Watch the full documentary on BBC iPlayer.
Shooting Director: Hannah Livingston
Producer: Naomi Pallas
Editor: Jamie Ryan
Executive Producer: Nisha Lilia Diu