'A study into how immunity is developed after COVID-19 infection is still ongoing,' Jeong Eun-Kyeong, the director of Korea's Center for Disease Control and Prevention, said.
South Korea has seen a rise in the number of people who recovered from the coronavirus and have now again tested positive, drawing concern and confusion as the country looks toward easing social distancing guidelines.
On Monday, the East Asian nation reported 116 confirmed cases of people who had been cleared of the virus now once again testing positive, Reuters reported. But health experts have suggested that it is likely the coronavirus was"reactivated" in the people, not that they have caught the virus again. Jeong Eun-Kyeong, the director of Korea's Center for Disease Control and Prevention, has said that the precise reason why the individuals are again positive for the virus is under investigation. In addition to the possibility of reactivation, other experts have suggested testing may have been inaccurate when the infected people initially tested negative.
"A study into how immunity is developed after COVID-19 infection [the disease caused by the coronavirus] is still ongoing," Jeong said during a press briefing on Friday, according toA medical staff member in a booth takes samples from a visitor for a COVID-19 test, the disease caused by the coronavirus, at a walk-thru testing station set up at Jamsil Sports Complex in Seoul on April 3.After a person is infected with a virus and recovers, they generally develop a level of immunity.
If people do not develop immunity after being infected by the coronavirus, as some scientists fear may be the case, that would make it more difficult to develop a vaccine. However, the health experts in South Korea currently believe it is more like that faulty tests and reactivation are more plausible explanations.
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