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discovering a variant that was likely present in several countries already at the time, and was being unfairly labelled as being the origin of the virus itself.Now, local scientists have made another breakthrough and again, it is to do with the Omicron variant.this week shows that predecessors to the Omicron variant existed on the African continent months before cases were first identified.
The other is that it infected a person with a weakened immune system for a prolonged period during which mutations accumulated. Omicron was the variant with the most mutations and by the end of December 2021, it had replaced the previously dominant Delta variant worldwide. All samples were tested by researchers within the countries of collection. These tests allowed them to estimate when the Omicron variant started to appear and how fast it spread.
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