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As Covid-19 rages smartphones help South Korea keep tabs on people in lockdown


Since the SARS and MERS pandemics there has been an explosion in technology innovation, including smartphones, which are now joining the battle to help prevent the spread of Covid-19.


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As the Covid-19 pandemic continues to wreak havoc around the world, and with emerging technology playing an increasingly central role in helping contain its spread, whether it’s 3D printing being used to fix faulty respirators, AI’s and supercomputers trying to discover new vaccines, autonomous vehicles and robots being used to disinfect streets, subways, and trains, and drones being used to disinfect streets and patrol streets, it’s now the smartphone’s turn to shine.


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With over 9,000 cases and more than 120 reported deaths South Korea is home to one of the world’s largest coronavirus outbreak outside China. As a result, the government in Seoul has taken what it calls “maximum” action to contain the spread of the disease, including sending thousands of people into mandatory home quarantine. And now it is launching its latest attempt to keep things from escalating further – a smartphone app that can monitor citizens on lockdown.

The app, developed by the Ministry of the Interior and Safety, allows those who have been ordered not to leave home to stay in contact with case workers and report on their progress. It will also use GPS to keep track of their location to make sure they are not breaking their quarantine.


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Named “self-quarantine safety protection,” the sparsely designed service is being launched today for Android smartphones, while an iPhone version is expected to be released this week. Officials said it is intended to help manage the increasing case load and prevent cases of “super spreaders,” who have been blamed for significant numbers of infections.

Under current guidelines from the Korean Centers for Disease Control and Prevention, anyone who has come into contact with a confirmed coronavirus carrier is subject to a mandatory two-week self-quarantine. “Contact” is defined as having been within two meters of a confirmed carrier, or having been in the same room where a confirmed patient has been or coughed in the past.


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Once self-quarantine subjects receive an order from their local medical center, they are legally prohibited from leaving their quarantine areas, which is usually their homes, and are instructed to maintain strict separation from other people, including family members. Those in lockdown are assigned to a local government case officer, who checks in twice a day by phone to track the development of any symptoms, and mobile testing teams are deployed to collect samples if things escalate.

Now those in quarantine can use the app to report their symptoms and provide status updates to officials, and if they venture outside their designated quarantine area, an alert will be sent to both the subject and the case officer.

The GPS tracking reflects a nationwide sense of urgency that spiked in mid-February after a 61-year-old woman known as “Patient 31” became a “super spreader” when she displayed coronavirus symptoms but ignored medical advice and refused to be tested. Instead, she continued with her daily routine, including visiting a buffet and attending her regular church services. She wound up infecting a number of other people in the city of Daegu.


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Today Daegu and the surrounding province of North Gyeongsang make up the largest coronavirus cluster in South Korea by a large margin. The vast majority of the country’s cases are in the region, and nearly 70% of those have been traced back to the Shincheonji Church.

“Nationwide the number of self-quarantined people [in South Korea] has reached around 30,000, and there is a limit to the human resources available to local governments to monitor these people,” said Jung Chang-hyun, the ministry official who supervised development of the app. “The app is a support service aimed at making this more efficient.”

The app is not mandatory, and because some people may have difficulty downloading or using it, the current system of monitoring through traditional telephone calls will continue. Others can simply opt out.


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Equally, officials say they are taking a flexible approach to GPS tracking rather than draconian enforcement.

“People can wander out of their quarantine areas intentionally as well as by mistake,” said Jung. “But because there is a risk of secondary infection either way, we hope that the app can help block these unnecessary incidents in a more organized way.”

While he did not disclose the app’s radius of movement restriction, Jung said that the ministry is taking into account the fallibility of GPS tracking.


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The app joins a repertoire of other measures launched to combat the surge of new cases in South Korea, such as drive-through coronavirus testing stations, which contribute to the country’s roughly 15,000-a-day testing capacity. Enabled by the KCDC’s policy of rigorous transparency, a slew of privately developed map services tracking confirmed carriers have also emerged, while municipal and district governments are sending regular emergency alerts to people’s phones to inform them of any new coronavirus cases.

This wealth of data has also, unfortunately, occasionally taken on a darker aspect. Online witch-hunts looking to identify and out coronavirus carriers have created an atmosphere of social fear, and so have leaks of patient information, some of which has been proved to be entirely false.


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“We are trying to minimise these risks by making it so that only the parties in question, the quarantine subject or the government official assigned to them, can access the app,” said Jung. “We will be thinking of ways to improve the app as we use it in the coming weeks.”

He added that the South Korean government would be prepared to share its technology with other nations that requested it.

“We haven’t had other countries ask for our help by sharing it yet, but if they were to, we absolutely would,” he said.

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