There is growing concern that research has shown that the virus that causes corona19 is being replaced by mutants that are up to 9 times faster in propagation.

CNN reported the results of a study published in the journal Cell in collaboration with scientists from various countries on the 3rd.

According to CNN reports, the researchers confirmed that the strains of viruses were more common and more contagious through gene sequence identification and human-animal testing.

Variant corona19 has been shown to affect the spike protein the virus uses to penetrate cells.

Researchers are investigating whether these spike proteins are affected by vaccines, and most of the vaccines that are currently in development focus on spike proteins, but they target older viruses, not variants.

The researchers named the variant virus'G614' and found that it almost completely replaced the existing virus called'D614' in Europe and the United States.

In particular, the strain spreads more rapidly in the nose, nasal cavity, and throat, and the propagation rate is also at least 3 to 9 times higher than before, the researchers report.

However, as a result of analyzing 1,000 corona19 inpatients in the UK, the infection was not even more serious.

(Photo = Yonhap News)