No. Viruses mutate over time and they could become more or less deadly over time. The Spanish Flu mutated into a more deadly virus overtime. https://www.hist

No. Viruses mutate over time and they could become more or less deadly over time. The Spanish Flu mutated into a more deadly virus overtime. https://www.history.com/news/spanish-flu-second-wave-resurgence https://www.history.com/news/spanish-flu-second-wave-resurge... ^ not a scientific article, simply to prove how bad the viewpoint of "mutate to be less deadly". More reasonable article: https://www.aap.com.au/yes-viruses-can-evolve-to-become-more-deadly/ https://www.aap.com.au/yes-viruses-can-evolve-to-become-more...