Disinformation about Covid-19 vaccines is still spreading on social media sites despite promises from firms to clamp down on the scourge.
The Mirror found dozens of accounts, groups and posts spouting bad science and conspiracy theories about the jab on UK platforms.
PM Boris Johnson said last month he had received a commitment from Facebook, Twitter and Google they would remove content quickly.
But within two minutes of searching for Covid-19 vaccine-related groups on Facebook, 25 were against the jab, with many of them private and inaccessible.