World Health Organization (WHO) published this video item, entitled “What causes a virus to change?” – below is their description.
When a virus is widely circulating in a population and causing many infections, the likelihood of the virus mutating increases. The more opportunities a virus has to spread, the more it replicates – and the more opportunities it has to undergo changes.
Learn more about what causes a virus to change.
World Health Organization (WHO) YouTube Channel
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