One tiny mutation may explain how bat viruses become human threats
Researchers have discovered that a single amino acid mutation in a coronavirus protein can determine whether a virus remains in bats or becomes a human threat. By comparing SARS-CoV-2 with a bat-specific virus, the study highlights how small genetic changes significantly impact immune system interaction.
Why it matters
Understanding the mechanisms of viral cross-species transmission is critical for pandemic preparedness and the development of future vaccines.
Most pandemics begin when a virus or other pathogen crosses from animals into people. Many scientists believe this is how COVID-19 emerged. The virus responsible for the disease, SARS-CoV-2, is closely related to coronaviruses found in bats.
The article reports on peer-reviewed scientific findings without political or social bias.
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