A dead monkey sold as bushmeat hangs outside a villager’s house in north-east Gabon. Photograph: Christine Nesbitt/AP

'Tip of the iceberg': is our destruction of nature responsible for Covid-19?

“There are countless pathogens out there continuing to evolve which at some point could pose a threat to humans,” says Eric Fevre. “The risk [of pathogens jumping from animals to humans] has always been there.”