Dr. Kindrachuk: Do viruses always evolve to become less severe?

Is it true that viruses always mutate to be more transmissible and less severe?

We asked high-consequence pathogen expert Dr. Jason Kindrachuk. His answer: not necessarily. And, from what we’ve seen so far, not with COVID-19. Stay tuned for more videos where Jason answers your top variant questions!

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Is it true that viruses always mutate to be more transmissible and less severe?

We asked high-consequence pathogen expert @KindrachukJason. His answer: not necessarily. And, from what we’ve seen so far, not with COVID-19.#ScienceUpFirst pic.twitter.com/AvHDLMon5F

— ScienceUpFirst | LaScienced'Abord (@ScienceUpFirst) January 18, 2022

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