파주 스타벅스 확진자 56명 나왔는데 '직원 4명'은 멀쩡할 수 있었던 이유

Authored by insight.co.kr and submitted by cantwaittillcollege

[인사이트] 김소영 기자 = 파주 스타벅스발 코로나19 확진자가 지속적으로 증가해 56명까지 늘어났지만, 희한하게도 당시에 있던 직원들은 모두 감염되지 않았다.

지난 19일 파주시 등에 따르면 스타벅스 야당역점 확진자 6명이 추가됐다.

2층 매장에서 30대 여성 A씨 등이 두 시간가량 머물렀을 뿐인데 누적 확진자가 56명까지 증가한 상황.

천장형 에어컨 6대가 분산 설치돼 있던 2층은 비말로 인한 감염이 빠르게 퍼질 수밖에 없는 구조였다.

기사와 관련 없는 자료 사진 / 사진=인사이트

놀랍게도 스타벅스 내부에 근무했던 직원 4명은 멀쩡했다.

정작 이곳에 상주했던 직원들이 코로나19에 감염되지 않을 수 있었던 이유는 무엇일까.

이 미스터리한 상황의 해답은 마스크와 장갑에 있었다.

이날 매장에 있던 네 명의 직원은 손님과 직접 대면하고 1, 2층을 수시로 오갔지만 KF94 마스크와 위생장갑을 근무시간 내내 착용했다.

전문가들은 이 같은 조치가 감염 차단을 도왔다고 설명한다.

마스크를 쓰면 입으로 들어올 세균의 수가 현저히 줄어들어 감염 위험을 낮춘다.

전문가들은 실내에서는 반드시 마스크를 착용할 것을 권고하고 있다.

SgtTryhard on August 23rd, 2020 at 03:23 UTC »

For those who want to know more about Korea's situation on COVID-19: There are two major outbreaks, one subdued and one ongoing. One in March started by a cult group named 신천지(Sincheonji). Their official name is 'Shincheonji Church of Jesus, the Temple of the Tabernacle of the Testimony', but that's just a cover. This outbreak was subdued in a month or two.

The second one(the one that started last week) started from a church named 사랑제일교회(Sarangjeil Presbyterian Church). Korea is reporting about 300~400 cases per day. Before the Sarangjeil outbreak, the number was around 20~50. If it goes on until Aug 26th, Seoul will be under social distancing level 3(all sports activities canceled, gatherings of 10 or more prohibited, etc).

cowboy2223 on August 23rd, 2020 at 02:21 UTC »

We had a worker work for two days around 40 to 50 coworkers but she wore a mask and washed her hands as well as her coworkers . 0 other people infected .

cantwaittillcollege on August 23rd, 2020 at 00:43 UTC »

Please read my edit below before commenting.

Translation:

The number of COVID-19 cases linked to a Starbucks in Paju, South Korea, has increased to 56 people. However, it has been found that no workers were infected.

On the second floor, 30-year-old A stayed inside the Starbucks for two hours, transmitting the virus to 56 more people inside.

The fast spread is not surprising given that there were six air conditioners on the second floor.

The four workers all tested negative. Why?

The reason is simple:

The workers, despite going to both the first and the second floor numerous number of times, wore their KF94 masks throughout the entirety of their shift.

Experts say this must have been the reason why they all tested negative. When wearing a mask, the amount of germs that can enter the mouth is highly unlikely.

Experts in South Korea highly advise people to wear a mask whenever they possibly can.

If you want to read the original article, the automatic translation is surprisingly very accurate.

South Korea is not locked down. Therefore, cafes, restaurants, and stores are all open, and people can eat or drink inside. That's the difference – customers took their mask off to eat/drink, workers kept it on. This further proves the importance of wearing a mask, people. This event also shows how dangerous air conditioners can be in the event that an infected person is in the same vicinity as you. IIRC, the first patient in Wuhan spread it to others via air conditioning even though they were more than 6 feet away. (https://www.asiae.co.kr/article/2020081911044455826 yes, this is confirmed.) South Korea is steaming hot and humid in the summers, so the air conditioners are always on during this time of the year. Therefore, summertime is likely to lead to more spikes in Asia.

South Koreans use KF94 masks instead of a regular surgical mask. KF94 masks are much more protective than regular masks and are equivalent to that of the N95 mask here in America. They have been shown to be 8-12 times more protective than a regular surgical mask if droplets do indeed land on the mask.

##IMPORTANT EDIT: Alright, the headline should say “wore a mask.” I get it, but I can’t change it. Thanks for letting me know, though.

Also, for those of you stating the lack of transmission wasn't due to the masks and it may be because the workers are immune, door touching or high-contact surfaces could have been a factor, or whether the workers were protected in some way vs. the customers:

This incident is exactly like the case of patient one in Wuhan. A swab sample from the air conditioner where the infected patient one was at tested negative, meaning that the virus droplets indeed were circulating around the air conditioner:

"During that period, no symptoms developed, and throat swab samples from the contacts and 6 smear samples from the air conditioner (3 from the air outlet and 3 from the air inlet) were negative for severe acute respiratory syndrome coronavirus 2 by reverse transcription PCR."

- https://wwwnc.cdc.gov/eid/article/26/7/20-0764_article

Another source that AC contributes to COVID-19 transmission:

"At a higher humidity, the droplets grow faster, fall to the ground earlier and can be inhaled less by healthy people. "A humidity level of at least 40 percent in public buildings and local transport would therefore not only reduce the effects of COVID-19, but also of other viral diseases such as seasonal flu."

- https://www.tropos.de/en/current-issues/press-releases/details/coronavirus-sars-cov-2-breitet-sich-bei-niedriger-luftfeuchtigkeit-in-innenraeumen-staerker-aus

Thus, air conditioners propagate droplet spread. KF94 masks protect against that. The customers weren't wearing them, but the workers are. People who didn’t wear masks got infected, while those who did wear a mask (even while visiting the 2nd floor, cleaned, mopped, etc.) did not get infected. It's simple.

Evidence #2:

https://mobile.newsis.com/view_amp.html?ar_id=NISX20200818_0001133490

More articles posted recently have more information about this outbreak now. Remember, the infected patient was on the second floor.

This article states the son of two parents who visited the second floor to use the bathroom came out positive with COVID-19. The parents, who stayed in the first floor the whole time, tested negative. This shows that the method of transmission is mainly via recirculation, not through door touching or otherwise.

Another article for confirmation regarding the son and parents: https://www.asiae.co.kr/article/2020081911044455826

FOR ANYONE WHO WANTS TO BUY KF94 MASKS MADE IN KOREA: https://kucusa.com/products/경인-플랙스-kf94-마스크-대형-10매-kn-flax-kf94-face-mask-made-in-korea-10ea

(It's 10 pieces for $30. $3 per mask, pretty good deal going on right now. $5 shipping.)

Also, thank you so much for the awards!