“During a pandemic, I thought it would be important to know if I went to a dangerous place, or if I have no reason to worry. So this service allows me to visualize which patient has passed, and when, near where I am, thanks to geolocation. “

Lee Dong-Hoon, a 25-year-old engineering student, produced this digital contamination map. We see some red dots there. They report positive cases in the vicinity of the user’s location in the past twenty-four hours. For the green dots, don’t worry: the person carrying the virus passed in the last four to nine days – and the suspect places are disinfected within three days.


With this card, every Korean citizen is informed in real time, on their mobile phone, of the spread of the virus. All new positive cases are reported, along with their movement history. Users can know which places to avoid.

Interested European countries

Since Lee Dong-Hoon answered the call from health authorities, three European countries have contacted him asking him to reproduce his modeling. His country, the South Korea is at the forefront of the fight against the coronavirus epidemic. With innovative initiatives, but also controversial tools, such as tracking the population by GPS or video surveillance.

The Koreans also protested, because at the time of its launch, the card communicated certain personal data which could make it possible to identify the people carrying the virus. Lee Dong-Hoon, on the other hand, has no objection to providing this information to fight the epidemic. However, the information accessible with this card is now filtered.

Extract from “South Korea, the good example?”, A report to see in the “Evening 2 info: Coronavirus: state of emergency” that offer “Correspondent” and “Further investigation” April 2, 2020.

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