March 14, 202021:39 – REGNUM Singaporean scientists have found that the coronavirus COVID-2019, which caused an epidemic in Chinese Wuhan, and then in other countries, mutated and became less visible to the human immune system. Research results published on the bioRxiv preprint site.
Researchers from Singapore National University have identified in many patients with COVID-2019 a new strain of the virus in which a large 382 nucleotide length genome has been removed. The missing fragment is responsible for the production of the protein involved in the assembly of new viruses.
As a result, a new strain of coronavirus became less active in the first stages of the disease and therefore it is less noticeable for the body’s immune system. This gives the new version of the virus more time to adapt to life in human cells.
Scientists did not expect that the nCoV-2019 virus is capable of such cardinal mutations. Due to its genetic instability, molecular biologists say, coronavirus began to spread so quickly in the face of an active fight against the virus.
Recall that earlier, scientists in China discovered two subtypes of a new type of coronavirus, one of which is infectious than the other. Researchers studied 103 coronavirus samples, finding that lately 149 mutations have appeared in it.
Read earlier in this story:
Chinese scientists have identified two subtypes of coronavirus