A new study in South Korea says that people who are testing positive for the second time with COVID-19 aren’t transmitting the disease, Bloomberg reports. This fascinating fact comes after the Korean Centre for Disease Control officials tested 285 out of 447 patients. This comes after samples taken from the patients were unable to infect or grow in the cell cultures. This indicates that patients were shedding dead viral particles. And this was the main reason behind these patients testing positive. Moreover, the officials also reported no signs of disease in people who came in contact with the reinfected ones. Therefore, this leads authorities to relax the distancing restrictions and other measures.
These positive cases came out because of the ability of PCR to undifferentiated between dead and viable viruses as it traces the nucleic acids. As far as South Korea is concerned, protocols are revised, and people can go home or work or schools. People need not be tested again once discharged from the hospital and isolation. These infected cases will be mere PCR detected cases.
There is also a rising debate over the current antibody tests. Antibodies are essential to fight off future infections, which helps in guarding our bodies. Researchers are trying to figure out how long these antibodies can protect us from getting infected. However, a recent study in Singapore shows that SARS-CoV has neutralizing antibodies ranging over 9-17 years, and scientists also found primarily IGM in antibodies of children. This infers that younger persons may have the possibility of fighting COVID-19 effectively. But this article is yet to be studied and peer-reviewed.
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