Thursday, September 16, 2021

A genomic analysis of SARS-CoV-2 in Africa reveals the first phase of the pandemic was caused by importations from outside Africa, while the second, more deadly phase was fueled by intracontinental transmission and led to emergence of variants of concern.


https://ift.tt/3lsPIYT via /r/science https://ift.tt/3tMDdeM

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