SEOUL (Reuters) – When a man in Seoul tested positive for the new coronavirus in May, South Korean authorities were able to confirm his wide-ranging movements in and outside the city in minutes, including five bars and clubs he visited on a recent night out.
FILE PHOTO: People in personal protective equipment walk up a flight of stairs as South Korean job seekers (background) attend an exam conducted outdoors amid social distancing measures to avoid the spread of the coronavirus disease (COVID-19), in Seoul, South Korea, April 25, 2020. REUTERS/Kim Hong-Ji/File Photo
The fast response – well ahead of many other countries facing outbreaks – was the result of merging South Korea’s already advanced methods of collecting information and tracking the virus into a new data sharing system that patches together cellphone location data and credit card records.
The Epidemic Investigation Support System (EISS), introduced in late March, effectively removed technological barriers to sharing…
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