While anti-immunity authorities are preparing to investigate human immunity to verify the size of Corona 19's domestic transmission, it is expected that a significant number of 'hidden' infected people will appear when conducting antibody tests.

It is estimated that a small number of people have recovered without even knowing they were infected.

Jung Eun-kyung, head of the Central Quarantine Countermeasures Division, said in a regular briefing held at the Osong Center for Disease Control in Chungcheongbuk-do today (1st).

The quarantine authorities plan to conduct a population immunity survey to determine how far the Corona 19 has spread and spread in Korea.

Population immunity studies are conducted to determine how many people have been immunized after an infectious disease such as Corona19.

It is evaluated by how many people in the population have formed antibodies that neutralize the virus.

"We are planning a test in connection with the National Health and Nutrition Survey, and another is planning an antibody test against a population, especially in areas where community infection has occurred, such as Daegu and Gyeongbuk, which have been declared special disaster areas," said Jung. I did.

"We are predicting that there will be a large number of infected people we have not found," he said. "It is because of the nature of Corona 19, which is often mild or asymptomatic."

In addition, he said, "It is not only a problem for our country, but a global situation." According to the results of antibody tests against populations published in other countries, there were also more than 50 times more infections than confirmed patients.

According to foreign media such as AP, a study conducted in 3,300 people in Santa Clara County, California, showed that 1.5 to 2.8% were infected with corona19.

Applying this percentage across the county is 50 times more than the official confirmed.

As a result, the quarantine authorities will also try to find out who is 'hidden' through antibody tests, and see how much it differs from the actual diagnosis.

"There is a possibility that we have suffered an infection and gained immunity without being recognized by the confirmatory test system, so we will have more than the confirmed person who found it." After seeing it, I will tell you about accurate interpretation, evaluation, and countermeasures. "