Study finds undiagnosed Covid-19 infections could be 27 times higher in South Korea's Daegu city

South Korea, an early success story in containing the virus among its 51 million population after a severe outbreak in Daegu in March, has reported 13,879 cases and 297 deaths. - AFP

SEOUL (Reuters): A small South Korean survey of people with no history of Covid-19, but living in a city with the most cases, showed that roughly one in 13 had antibodies to the novel coronavirus, indicating the virus may have spread more widely than thought.

The study said based on the survey, roughly 185,290 people could have contracted the virus in Daegu city, which is the country's fourth-largest city with a population of 2.5 million.