More than 100 confirmed cases of monkeypox – a disease usually found in central and western Africa – have been detected in countries from the US to Australia and France to the UK, causing alarm after two years of a pandemic. With cases identified in more than 15 countries, it feels eerily similar to reports of coronavirus in 2019 – but is it? We speak to Guardian science correspondent Nicola Davis to find out more about the situation and whether it is cause for concern