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Corona 19, which began in China at the end of last year, has been shaking the world from Asia to America and Europe. The World Health Organization has mentioned that the situation is serious and it is time to recheck whether our countermeasures are intact.

Cho Dong-chan, a medical journalist, pointed out.

<Reporter> Johns Hopkins University in the United States.

The number of confirmed patients alone is less than half of China in all other countries.

But the rate of confirmation increases has already surpassed China. In Europe alone, Italy and France have the largest number of confirmed patients, but the rate of increase is similar to that of Belgium and Christ, with fewer patients.

The number of patients is a matter of time, and defense efforts in each country are not working much.

[Professor Kwon Yong-jin / Seoul National University Hospital Director of National Medical Center at the time of MERS): Isolating the people by tracking the copper wire will end Corona 19. With this classical approach, it seems impossible to stop Corona 19. ]

So why is China's steep rise in patient growth slowing?

Since late January, China has controlled 63 percent of the population's movement for about a month, which the World Health Organization analyzes as the cause of the slowdown.

Because of this, Italy has also adopted strong restrictions on movement. The problem is that the economic damage is high and the Corona 19 is expected to prolong, and we cannot guarantee the period of its effectiveness.

The real countermeasure we can choose is to shift the subject of quarantine from 'specific' to 'anyone'.

Corona19's propagation power is large during the first five days from the absence of symptoms, so routine hand washing and mask wearing are especially important.

[Kwon, Yong-Jin / Seoul National University Hospital Professor (National Medical Center Planning Department at the time): It is to block the infectious agents coming from the respiratory organs of the infectious agents. Everyone should wear a mask because they think I may be the source of infection.]

Cloth masks are less effective than health masks, but they are more effective than covering them with clothing or handkerchiefs to prevent others from splashing when they speak or cough.

(Video coverage: Park Seung-won, Video editing: Lee Seung-yeol)