Journal
JOURNAL OF TRANSLATIONAL MEDICINE
Volume 21, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12967-023-04095-6
Keywords
COVID-19; Variant of concern; Omicron; SARS-CoV-2
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For the first time in medical history, this article describes the evolution of a new human virus in a non-immune population after a spillover event. It documents the emergence of variants with advantageous features, changes in virus replication pathways, and acquisition of immunoevasive traits. These characteristics have greatly influenced the spread of SARS-CoV-2 and the clinical presentation and prognosis of COVID-19, which are discussed in this review.
For the first time in the history of medicine, it has been possible to describe-after a spillover-the evolution of a new human virus spreading in a non-immune population. This allowed not only to observe the subsequent emersion of variants endowed with features providing the virus with an evolutionary advantage, but also the shift of the pathways of virus replication and the acquisition of immunoevasive features. These characteristics had a remarkable influence on the diffusion of the SARS-CoV-2 and on the clinical presentation and prognosis of COVID-19, aspects that are described and commented in this review.
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