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It is a topic that President Trump of the United States recently showed a quick diagnostic kit for Corona 19 at a press conference. Not long ago, he criticized the rapid diagnostic kit as inaccurate, but his attitude changed. We can refer to the reason.

Reporter Cho Dong-chan was covered by a medical journalist.

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What President Trump brought out is the Corona19 Rapid Diagnostic Kit.

The RT PCR method to determine the positive and negative by amplifying the virus gene after transferring the patient's sample to the laboratory usually takes about 6 hours, but the rapid diagnosis kit puts the patient's sample directly into the machine at the hospital site and is positive for 5 minutes. , Voice can see the result in 13 minutes.

The U.S. FDA recently approved three types of corona19 rapid diagnostic kits.

The antibody diagnostic method of the rapid diagnosis kit was incorrect, and the position that he would not use was changed by 180 degrees.

The reason for this is the new findings introduced by the American Society of Infectious Diseases.

RT PCR showed a positive discrimination rate near 100% on the first day of symptoms, but it was found to be less accurate with 80% on the 6th day and 50% on the 14th day.

If you are tested for more than a week after the onset of symptoms, there is a possibility that a so-called 'false negative', that is, a virus, may have a negative judgment.

On the other hand, the rapid diagnostic kit for testing antibodies in the blood initially has a positive discrimination rate of only 70%, but it surpasses the RT PCR positive discrimination rate from the 5.5th day of the onset of symptoms.

The team explained that the characteristic of the corona 19, which is ambiguous, can only increase the positive reading rate to 98.6% by using RT PCR and a rapid diagnostic kit.

As the number of cases in which Korea is also receiving voice and reaffirming is increasing, it is necessary to review the background of the United States' transition to diagnostic policy.

(Video coverage: Choi Woong, Video editing: Park Ji-in)