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Corona spreads around people who have been to the Itaewon Club in Seoul19. The patient now has over 100 people. Health authorities are focusing on quickly identifying people in Itaewon as it is a fight against time. Using information from the mobile phone base station around Itaewon, we sent texts to over 10,000 people for inspection and secured CCTV data for epidemiological investigations.

Today's (12th) first reporter, Nam Joo-hyun.

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Every day from midnight to 5 am every day from the 24th to the 6th of last month, there are 1,905 people who stayed in the Itaewon nightlife area for more than 30 minutes.

Based on the access history of the base stations of the mobile carrier, the city of Seoul sent text messages to them to be tested for Corona19.

[Park Won-soon / mayor: If you judge did not have a club in or around As will be no need receive (check), and bateusyeoseo (we recommended) you wish to completely OK

under test to also secured 494 people names using the card at the club five Self-containment measures were taken.

Of the more than 5,500 people on the club's visitor list, about 2,000 still remain out of reach.

Health authorities are looking for club visitors with the help of mobile carriers, police, and card companies because rapid diagnostic testing of these is so important.

[Kwon Joon-Wook / National Health Research Institute: If you track and find more than 90% of contacts in the fastest time possible, you can suppress them eventually. So, because it's a fight against time ... .]

So far, there have been 1,300 diagnostic tests involving Itaewon clubs across the country.

In order to encourage prosecutors, the health authorities are trying to expand the 'anonymous prosecutors' that can be tested without a real name, and to secure a list in the same way for the first maids, such as club maids.

The police are also securing CCTV data in the Itaewon area to prepare for further epidemiological investigations.

(Video coverage: Kim Nam-sung, video editing: Lee So-young)

▶ Confirmed at two clubs that have not visited 'Yongin 66'… Additional spreading emergency
▶ Confirmation of Gimje public health among Itaewon clubs… 30 people