<Anchor> A
remarkable study has been published regarding the spread of Corona 19.
70-80% of all confirmed cases do not infect others, and a small number of super spreaders, that is, some highly contagious patients, have caused the current pandemic.
Medical reporter Cho Dong-chan reports.
<Reporter>
Corona 19 is known to have a strong transmission power, so that one patient usually infects two others.
However, a Japanese study found that close to 80% of corona19 confirmed cases do not infect others, and a Hong Kong study also analyzed that close to 70% have no transmission power.
Most of the confirmed cases do not have an infectious history. How was the global pandemic possible?
The world's most prestigious science magazine analyzed this as'super propagation'.
It is not that one corona19 patient infects two other people evenly, but four out of five confirmed cases do not infect others, but the other one infects eight.
[Myung-don Oh/Professor of Seoul National University Infectious Diseases (Clinical Committee for New Infectious Diseases): 80% of confirmed cases do not cause any secondary infection, and the remaining 20% cause most infections.]
Super transmission is not due to humans, but in an enclosed space. It is caused by the so-called'three mill' environment in which people are densely contacted.
In February this year, there was the first'super transmission' in the United States, where 97 people were infected at the Boston Society, and in the end, a case of more than tens of thousands of confirmed cases in Boston alone is representative.
In this case, it is more efficient to prevent'super propagation' than to isolate close contacts by tracking back all confirmed cases.
The Central Clinical Committee for New Infectious Diseases in Korea will soon announce the results of the analysis on blocking super transmission.