shell out for Daily Star's newsletter. It's FREE! Sign up today for the biggest and brightest stories sent straight to your inbox A woman carrying coronavirus but not showing a single symptom took a 60-second trip in an elevator on her own and infected 71 people.
Coronavirus contact tracing experts were left baffled after the trail went cold as they tried to locate the source of an outbreak which spread across two hospitals in Heilongjiang Province, China in mid-April.
Details of the case have emerged in a new study released by the US Centres for Disease Control (CDC) which analysed the impact a single traveller with no symptoms can have.