New studies find more evidence supporting natural origin of SARS-CoV-2


The research teams from different countries have recently published three reports which discovered that some zoonotic origins were the cause of the spread of SARS-CoV-2, which initiated the Covid-19 pandemic globally.

Groups of scientists from Britain, the United States, Australia, South Korea, Malaysia, Singapore, and China carried out the studies. However, all reports are preprints and have not finalized peer analysis at a journal, still, the deductions have gained limelight, due to the researchers’ background as famous immunologists and virologists.

Their main conclusions say that lineage A and lineage B of SARS-CoV-2, which was the reason for the early outbreaks, are very much different from one another genetically, hence the coronavirus must have developed in non-human animals and the two lineages spread to humans separately.

Read more: WHO says ‘will do everything’ to find COVID-19 origins

Moreover, one report was published on February 25 by scientists in China working with the Chinese Centre for Disease Control and Prevention, the Chinese Academy of Sciences, and other institutes after an analysis of over 1,000 samples gathered from the environment and the animals within Huanan Seafood Market in Wuhan, China, in early 2020. 

While the other two reports were released on February 26 by the US-led international teams.

One of the virologists at the Scripps Research Institute in La Jolla, California, Kristian Andersen who is also an author of the two reports by the international teams, also proved that the two preprints provide the strongest indication that the Covid-19 pandemic began from “live animals” instead of laboratories.

Meanwhile, he posted on Twitter one report entitled “SARS-CoV-2 emergence very likely resulted from at least two zoonotic events,” Andersen tweeted that the researchers need “more and better data” to find out the basis as there are still unanswered questions like “What animals? Farmed or wild? Connectedness?” and “Future risk?”

Regardless of some clamor publicizing lab-leak hypothesis, a number of studies have verified that the Covid-19 origin tracing is a critical matter needed to be dealt with through the cooperation of universal scientists on basis of scientific attitude and principles.

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