[단독] With current PCR, infection is blocked for only one day… “I need to use a quick test.”

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In addition, this study also contains the content that it is difficult to prevent delta mutations, which are rapidly spreading, with the current quarantine system centered on diagnostic tests. There is a high chance that a confirmed person will infect others before going into self-quarantine.

If so, what are the alternatives, followed by Cho Dong-chan, an exclusive medical reporter.

The cause of the rapid increase in the number of patients with severe cases in recent years is group infection in nursing hospital facilities.

In August and September, the number of confirmed cases was about 20 and around 400, and in October, 63 cases and 1,733 people were confirmed.

Since residents of nursing hospitals and facilities stay only in hospitals, they view the source of infection as medical personnel and workers, and have them undergo PCR testing twice a week.

National Medical Center analysis data.

Delta mutation, which accounts for nearly 100% of domestic infections, is contagious for eight days from 3 days before symptoms such as fever and cough to 5 days after symptom onset.

However, on average, the quarantine time for confirmed patients was 4 days after symptom onset.

You only control one day out of eight that you can infect others.

Although it is difficult to diagnose in the asymptomatic stage, it is important to diagnose it immediately after symptoms.

This is because infectivity is strongest on the first day after symptom onset.

Although it is the most accurate, the current PCR test, which takes an average of two days, should not be insisted on, but rapid PCR or rapid antigen test that can be diagnosed within an hour or two should be actively used.

Rapid PCR tests are as accurate as current PCRs.

[방지환/국립중앙의료원 신종감염병 중앙임상위원회 : 신속 PCR은 우리 보통 하는 PCR하고 거의 비슷한 정도의 신뢰도를 가진 매우 좋은 검사인데, 이게 가격이 비싸고 보험이 안 되고 또 이 키트를 안 갖춘 병원이 많습니다.]

Rapid antigen testing is known to have low accuracy, but it depends on how it is used.

[방지환/국립중앙의료원 신종감염병 중앙임상위원회 : 병원에 입원할 때 최근 2~3일 내 PCR에서 음성인 걸 확인합니다. 2~3일 전에 했던 PCR이랑 입원 직전에 한 신속항원검사, 사실 입원 직전에 한 신속항원검사가 더 신뢰도가 높을 수 있습니다.]

For this reason, the UK Department of Health and the US Centers for Disease Control and Prevention also state that frequent rapid testing helps to prevent infection.

(Video editing: Yoon Tae-ho, CG: Kang Yu-ra, Kang Yun-jeong, Lee Ah-reum)

Reference-news.sbs.co.kr

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