Skip to main content
Premium Trial:

Request an Annual Quote

Glimpses of Viral Origins

New studies are hinting at how SARS-CoV-2 evolved, the Wall Street Journal reports.

A handful of recent studies have identified coronaviruses similar to SARS-CoV-2 in other animals like bats and pangolins across East and Southeast Asia, it notes, adding that another study, posted as a preprint to BioRxiv, indicates that a single amino acid change in the spike protein may have made the virus better suited to replicating in human cells.

Public health officials say, according to the Journal, that pinpointing the source of the virus is needed to help avoid future outbreaks, though may take time. Duke-NUS Medical School's Lin-Fa Wang, who has studied coronaviruses in bats and pangolins in Southeast Asia, tells the Journal that he is "convinced that the ancestral virus came from bats." He adds that researchers should conduct a thorough search for it near where horseshoe bats roost.

The Journal adds that the World Health Organization team that was in China to investigate the origins of the pandemic has also suggested searching not only in China but also in Southeast Asian countries it borders for the origins of SARS-CoV-2.