In Korea, the first suspected case of'reinfection' of Corona 19 has been reported, and the authorities are making a sense of it.



This is because, if the final conclusion is that ``after cure, it is correct to be reinfected,'' it will have no choice but to affect the development of vaccines and treatments as well as response to COVID-19 in the future.



Even if a vaccine for COVID-19 is developed in the future, it may be necessary to get the vaccine every year, depending on the type of virus, like the flu.



Reinfection refers to being infected again after being infected with Corona 19, and is different from're-positive'.



In the meantime, all cases that were confirmed again after being cured in Korea were re-positive.



Re-positiveness is most often when a dead virus fragment left in the patient's body was detected by a PCR (gene amplification) test, or when the test was negative, the amount of virus was insufficient.



Therefore, this case is not classified as a newly infected re-infection after having been cured of Corona 19 once.



As of yesterday (20th), there were a total of 705 cases of retraining (redetection) in Korea.



The quarantine authorities explained that from as little as 30 to as many as 90 are reported per month.



On the other hand, re-infection means reinfection after being cured, meaning that repeated infections are possible like the flu.



Corona 19 reinfection is still so rare that only 5 cases have been reported worldwide.



At a regular briefing today (21st), Jung Eun-kyung, head of the Central Defense Countermeasures Headquarters, said, "If the Corona 19 virus undergoes some mutations, such as the common coronavirus or influenza (flu), which causes the common cold, re-infection is possible to some extent and also immunity. "Because it doesn't last a lifetime, it means it can show a pattern similar to a cold or flu that can become infected over and over again."



He also said, "Recently, most of the infections in Korea are GH group viruses, so reinfection is not a common case." "There is a need for continuous surveillance and research as to whether it is crazy."



A woman in her twenties residing in Seoul, the first suspected reinfection in Korea, recovered after being confirmed in March, and was tested positive again in early April.