Originally posted by TheLurch
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Ancient Covid?
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Originally posted by shunyadragon View PostIt is not only likely, but certain all the viruses today evolved with humans for hundreds of thousands of years.
We're currently exposing ourselves to viruses that have no significant history with humans.
Originally posted by shunyadragon View PostThere is an apparent inherited degree of immunity among the populations of Southeast Asia where Covid like viruses are likely endemic for at least thousands of years.
Also, for the most part, you don't "inherit immunity." * You develop it after exposure.
* The exception being that there are some variants in the innate immune response that float around in the human population.
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Originally posted by shunyadragon View PostIt is not only likely, but certain all the viruses today evolved with humans for hundreds of thousands of years.
There is an apparent inherited degree of immunity among the populations of Southeast Asia where Covid like viruses are likely endemic for at least thousands of years.
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It is not only likely, but certain all the viruses today evolved with humans for hundreds of thousands of years.
There is an apparent inherited degree of immunity among the populations of Southeast Asia where Covid like viruses are likely endemic for at least thousands of years.
Leave a comment:
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Ancient Covid?
Well this is interesting...
The entire paper, An ancient viral epidemic involving host coronavirus interacting genes more than 20,000 years ago in East Asia can be read in its entirety by clicking on the hyperlink provided, and the "abstract" is available below
Highlights
•Ancient viral epidemics can be identified through adaptation in host genomes
•Genomes in East Asia bear the signature of an ∼25,000-year-old viral epidemic
•Functional analysis supports an ancient corona- or related virus epidemic
Summary
The current severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has emphasized the vulnerability of human populations to novel viral pressures, despite the vast array of epidemiological and biomedical tools now available. Notably, modern human genomes contain evolutionary information tracing back tens of thousands of years, which may help identify the viruses that have impacted our ancestors—pointing to which viruses have future pandemic potential. Here, we apply evolutionary analyses to human genomic datasets to recover selection events involving tens of human genes that interact with coronaviruses, including SARS-CoV-2, that likely started more than 20,000 years ago. These adaptive events were limited to the population ancestral to East Asian populations. Multiple lines of functional evidence support an ancient viral selective pressure, and East Asia is the geographical origin of several modern coronavirus epidemics. An arms race with an ancient coronavirus, or with a different virus that happened to use similar interactions as coronaviruses with human hosts, may thus have taken place in ancestral East Asian populations. By learning more about our ancient viral foes, our study highlights the promise of evolutionary information to better predict the pandemics of the future. Importantly, adaptation to ancient viral epidemics in specific human populations does not necessarily imply any difference in genetic susceptibility between different human populations, and the current evidence points toward an overwhelming impact of socioeconomic factors in the case of coronavirus disease 2019 (COVID-19).
So coronaviruses may have been infecting humans for tens of thousands of years.
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