Ivermectin: How false science created a Covid 'miracle' drug

Ivermectin has been called a Covid "miracle" drug, championed by vaccine opponents, and recommended by health authorities in some countries. But the BBC can reveal there are serious errors in a number of key studies that the drug's promoters rely on.

For some years ivermectin has been a vital anti-parasitic medicine used to treat humans and animals.

But during the pandemic there has been a clamour from some proponents for using the drug for something else - to fight Covid and prevent deaths.

The health authorities in the US, UK...