rickydh escribió:Pongo el artículo que rebate el "diseño" del virus en laboratorio.
Saco unos extractos de las conclusiones, y una de las teorias posibles (según el propio artículo)
Ya que cada cual piense lo que quiera...
http://virological.org/t/the-proximal-origin-of-sars-cov-2/398Conclusions
The genomic features described here may in part explain the infectiousness and transmissibility of SARS-CoV-2 in humans. Although genomic evidence does not support the idea that SARS-CoV-2 is a laboratory construct, it is currently impossible to prove or disprove the other theories of its origin described here, and it is unclear whether future data will help resolve this issue.
Dice, más o menos, que no hay evidencia de construcción en laboratorio, pero que no se puede probar o desaprobar alguna de las otras teorias.
Y aquí va una de las teorías del propio artículo:Selection during passage.
Basic research involving passage of bat SARS-like coronaviruses in cell culture and/or animal models have been ongoing in BSL-2 for many years in multiple laboratories across the world25-28. There are also documented instances of the laboratory acquisition of SARS-CoV-1 by laboratory personnel working under BSL-2 containment29,30. We must therefore consider the possibility of a deliberate or inadvertent release of SARS-CoV-2. In theory, it is possible that SARS-CoV-2 acquired the observed RBD mutations site during adaptation to passage in cell culture, as has been observed in studies with SARS-CoV5 as well as MERS-CoV31. However, the acquisition of the polybasic cleavage site or O-linked glycans - if functional - argues against this scenario. New polybasic cleavage sites have only been observed after prolonged passaging of low pathogenicity avian influenza virus in cell culture or animals. Furthermore, the generation of SARS-CoV-2 by cell culture or animal passage would have required prior isolation of a progenitor virus with a very high genetic similarity. Subsequent generation of a polybasic cleavage site would have then required an intense program of passage in cell culture or animals with ACE-2 receptor similar to humans (e.g. ferrets). It is also questionable whether generation of the O-linked glycans would have occurred on cell culture passage, as such mutations typically suggest the involvement of an immune system, that is not present in vitro .
Traduzco lo subrayado: Debemos por tanto considerar la posibilidad de una "liberación" de SARS-CoV-2 deliberada o inadvertida.
¿Podemos considerar esto una teoría no-conspiranoica o no?
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Saludos
Si, a nível mundial és algo que vá teniendo cada vez más apoyos y pruebas, pero no en el foro, donde los dogmas de algunos no lo permiten. Mejor buscar culpables dentro de fronteras que tocar los queridos rojos chinos.