Yeshua HaDerekh
Men dream of truth, find it then cant live with it
- May 9, 2013
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True, not all, however we are specifically discussing coronaviruses, specifically Covid 19. The reproductive rate of a pathogen has a maximum as virulence increases. If initial virulence is higher than this optimal virulence, then, virulence evolves to be lower. But virulence can also increase if the initial one is lower than the optimum. The Omicron variant replaced Delta as the dominant variant. Interestingly, while it has higher transmissibility , it has a lower associated risk of death. Omicron and the currently circulating variants broke the trend of increased transmissibility coupled with increased or similar lethality.That's not in general true. If there is selection pressure to become less fatal, they'll become less fatal. There's no reason to think SARS-CoV-2 is under that kind of pressure. The Omicron variants are less virulent than Delta was, but Delta was more virulent that the original virus.
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