How can VIRUSES make us so SICK?

Описание: Viruses are seriously tiny, but they can make us really, really ill. Have you ever wondered how that works, and why some viral infections are worse than others? Why are some people dying with coronavirus, while others don't suffer at all?

With thanks to Pixabay and Wikimedia Commons for images and video.

Navajo Night by Audionautix is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...)
Artist: http://audionautix.com/

Hypnothis by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/

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