Seoul: A smartphone tracking app for new airport arrivals. A "smart city" database of thousands of people infected by the new coronavirus and their contacts. Electronic bracelets that track people breaking quarantine laws.
South Korea, among the first countries to bring a major coronavirus outbreak under control, is now taking steps to control the disease well into the future, relying heavily on technology and its hyper-connected society.
The aim is to reinvigorate Asia's fourth-largest economy and keep it humming by building on the country's success identifying and tracking cases without imposing major mandatory lockdowns or requiring businesses to keep employees working from home, officials say.
"Without resorting to lockdowns or bans on movements, we have been able to keep our factories running to a large degree, and this is instilling the idea to the world that we are a safe and transparent production base," President Moon Jae-in said last week.
South Korea's evolving playbook is being closely watched in Europe and the United States, where governments are hoping to quickly bounce back from the crisis.
"We are in a lengthy tug of war with the coronavirus," Health Minister Park Neung-hoo said last week. The battle could last months or even years, he said.
South Korea's virus-containment strategy will build on an intensive contact tracing and testing campaign that experts say has been instrumental in uncovering webs of infections that might otherwise have gone undetected.
Besides the testing kits and tracing techniques that have already been rolled out, South Korea plans to build out a "smart city" database and get quarantine violators to agree to use tracking bracelets. The database was designed to share information between cities on things like traffic and pollution. Health authorities plan to leverage that network to reduce the time it takes to find and isolate coronavirus cases.
The database will be operated by the Korea Centers for Disease Control and Prevention (KCDC), giving epidemiological investigators real-time data feeds on patients, including their whereabouts, times spent at specific locations, CCTV footage, and credit card transactions.
That could cut the time needed to trace a patient's movements from about one day to around ten 10 minutes, according to the Ministry of Land, Infrastructure and Transport, or MOLIT, which originally set up the "smart city" initiative.
Along with information uploaded by the KCDC, the system compiles data from the National Police Agency, the Credit Finance Association of Korea, three telecommunications companies and 22 credit card companies.
Lee Soo-young, a director of the Korea Advanced Institute of Science and Technology's Institute for Artificial Intelligence, said the technology would help investigators track cases more efficiently, even if it raised privacy issues.
However, MOLIT said that investigators will need to obtain police approval to see information, and access to the database will be restricted to a small number of authorised users, ensuring the confidentiality of unrelated personal information. MOLIT also said the database information would be deleted when the outbreak was contained.
A coalition of 17 human rights groups has expressed privacy concerns about the adoption of the tracking wristbands for people who violate quarantines, citing potential discrimination against patients. In response, the authorities have said that the wristbands would only be used if patients consent.
Another key to the South Korean virus containment strategy is stepping up border controls. Around half of new cases in recent weeks have been found in people arriving from overseas, according to the KCDC.
Rather than outright bans, South Korea is using widespread testing and technology-enabled tracking to allow people to travel to the country. Mandatory testing and quarantines now apply to nearly all arrivals from overseas, including citizens.
South Korea installed walk-through facilities this month at Seoul's Incheon International Airport to test anyone who arrives with symptoms. Those who don't show symptoms will also be tested within three days.
All arrivals must download a government app that tracks their location and requires users to report any symptoms. Then everyone, regardless of nationality or whether they tested negative, must self-isolate for two weeks.
After the two-week period, the app shows a message saying users are free to delete it from their phones.
Health officials say they are also looking to adapt the social distancing policies they called for early in the crisis - urging people to avoid large gatherings or leave their homes, but imposing no actual "stay home" orders - in coming weeks.
The government plans to develop more practices in homes, offices, and public places to reduce the risk of another large outbreak, while allowing economic and social life to resume.
Some of the long-term policies being discussed include making workplaces less crowded, and persuading Koreans that it is not a virtue to show up at work when sick, Yoon Tae-ho, director general for public health policy at the health ministry told Reuters.
In a glimpse of what could become long-term practices, the KCDC last week outlined preventive measures for schools, churches and some entertainment facilities that included disinfection schedules, guidelines on how close people can be to each other and temperature checks.
"Our goal is to be able to control infections in a way that our health and medical system, including personnel and sickbeds, can handle them at usual levels," Park, the health minister, said.
South Korean officials say that means keeping new cases under 50 per day, a level first reached last week. On Tuesday, South Korea reported 27 new cases.
The country is also stepping up efforts to improve testing and boost resources for hospitals.
Hospitals are testing all pneumonia patients, and staff at places like nursing homes and medical facilities will be regularly tested. Authorities have designated two new hospitals and are building a third to specialize in treating infectious diseases.
The government, in a supplementary budget, has allocated an extra 135 billion won ($111 million) to build 120 additional isolation rooms, buy more medical equipment and specialised ambulances, cover the costs of medical staff handling coronavirus cases, and prepare for future epidemics.
New regulations also designate supplies like face masks, safety goggles, disinfectants, protective clothing, and infrared cameras to detect fevers as strategic items that will be stockpiled by the government, the Ministry of Interior and Safety said.
"We will have to step up our daily hygiene and disease prevention standards," Yoon said. "It will be a tedious battle, but we have to do this."