Himedik.com – Until now, researchers are still investigating the true information about where the crosses between corona virus Covid-19 from animal to human happens.
A study published in Nature Microbiology might be able to answer that question, said study researchers.
Studies conducted by researchers from the United States, China and Europe compared the patterns of SARS-CoV-2 (the corona virus that causes Covid-19) with other viruses, and made history related to the evolution of the virus.
They found that the lineage that produced the new type of corona virus was already present bat.
“Collectively, our analyzes show bats to be the main reservoir for the SARS-CoV-2 lineage. Although pangolin, or other hitherto undiscovered species, may act as intermediate hosts that facilitate transmission to humans, “the research team said. Fox News.
They say that a new type of coronavirus evolved from other bat viruses from 40 to 70 years ago.
“The lineage that gives rise to SARS-CoV-2 has been circulating unnoticed in bats for decades,” the researcher added.
In their news release, researchers said SARS-CoV-2 was genetically similar (about 96%) to the RaTG13 coronavirus found in samples of the horseshoe bat Rhinolophus affinis in 2013 in Yunnan province, China. However, this time the virus was different from RaTG13 in 1969.
“The ability to estimate divergence times after deciphering the history of recombination, something we are developing in this collaboration, can provide insight into the origins of many pathogenic viruses,” said lead researcher, Philippe Lemey, of Department of Evolutionary and Computational Virology, KE Leuven.
Researchers have shown that SARS-CoV-2 shares the same properties as their ‘ancestors’ regarding the receptor-binding domain (RBD) on the spike protein that allows the virus to bind to receptor cells in humans.
The study authors said other research showing that evolutionary changes in pangolins could allow a new type of coronavirus to be transmitted to humans is simply not true.
“In contrast, our study suggests that SARS-CoV-2 may have the ability to replicate in the upper respiratory tract, in both humans and pangolins,” said the research team.
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