The route of the Chinese woman infected with the coronavirus while traveling in Jeju is currently being traced.
The analysis mostly depends on testimonies and surveillance camera footage, which cannot guarantee accuracy.
The province is making appeals to Seoul for access to GPS information saved by mobile service providers and credit card payment information.
Joseph Kim reports.

[slug] Infection of Chinese woman who visited Jeju confirmed on Jan. 30

A Chinese visitor who had traveled to the island started to show symptoms of nCoV beginning January 26th after she returned to her home.
She was confirmed to be infected with the deadly virus on January 30th in China.

[slug] Itinerary on Jan. 24 and 25 during incubation period being tracked

She traveled the island for 4 nights and 5 days during the incubation period.
The province's health authorities have been tracking her itinerary on the 24th and 25th.

[slug] Itinerary is reconstructed by testimony and memory

However, there is a serious lapse in information.
Her family's itinerary is being reconstructed from her daughter's memory and testimony that could be distorted or miss important information.

Bae Jong-myon / Representative, Province
As memory can be distorted while a testimony is being made, we're restructuring her itinerary based on surveillance camera footage and credit card payment information.
<배종면 / 제주특별자치도 감염병지원단장 >
사람이 구술하는 과정에는 기억 등의 오류가 있어서 문제가 생길 수 있다는 경험 하에 객관적 자료인 CCTV나 카드사용 내역 등으로 동선을 정리합니다.

[slug] Analysis of surveillance video recording is big burden to authorities, Accuracy is questionable

The analysis of surveillance camera recordings, however, places a heavy burden on authorities as the work requires too much time and energy. Moreover, the work cannot ensure accuracy.

[slug] Province sees big data as a tool to fill loophole

This is the limitation of the work.
The province sees big data created in the private sector as a tool to fill the loophole.

[slug] Data on mobile phone location and payment to aid quick response

It says that a mobile phone's access data to local cell towers or payment information of credit cards would provide more accurate information on one's travel route.

[slug] Notice for home quarantine and response to be made quickly

That will enable authorities to provide information to persons who may have come into contact with an infected patient.
This will allow for a quicker response including home quarantine orders to persons who were in close contact with the infected.

Recording
Won Hee-ryong / Governor
A person' s past route can be quickly identified. Persons who were within 2 meters of the infected or who were connected to the same cell tower when the infected was in a closed room can be identified in a minute.
< 원희룡 / 제주특별자치도지사 >
동선을 GPS맵으로 확보하는 데는 몇 시간 걸리지도 않습니다. 그때 2m 내에 누가 있었는지, 밀폐된 공간에 들어갔을 때 같은 기지국에 접속한 사람이 누가 있었는지 컴퓨터가 순식간에 뽑아내기 때문에...

[Reporter] Joseph Kim
[Camera] Kim Seung-cheol

However, mayors and governors are not authorized to use data created by the private sector.
It is expected to take time to persuade Seoul and clear any necessary administrative procedures.
It is questionable if the usage of the data will be allowed to address the current epidemic.

Joseph Kim, KCTV