SARS-CoV-2 has genetic features indicating natural zoonotic evolution rather than human engineering
Multiple genomic and phylogenetic studies indicate that SARS-CoV-2 possesses genetic features consistent with natural zoonotic evolution and spillover from wildlife rather than human engineering.
The retrieved literature contains multiple high-impact reviews and phylogenetic studies providing genomic evidence for the natural zoonotic origin of SARS-CoV-2, noting its similarities to wild bat and pangolin coronaviruses and evolutionary signatures of natural selection. While one paper notes that certain features like the furin cleavage site could theoretically be engineered, the vast weight of recent empirical literature and discovery of wild relatives supports natural zoonotic evolution.
Ben Hu, Hua Guo, P. Zhou, Zhènglì Shí. Characteristics of SARS-CoV-2 and COVID-19. 2020. https://doi.org/10.1038/s41579-020-00459-7
Shi et al. review the genomic characteristics of SARS-CoV-2 and discuss its potential wildlife hosts and zoonotic origin.
Rossana Segreto, Yuri Deigin. The genetic structure of SARS‐CoV‐2 does not rule out a laboratory origin. 2020. https://doi.org/10.1002/bies.202000240
Genomic analyses note that features like the receptor-binding domain and furin cleavage site could theoretically arise via artificial human intervention or site-directed mutagenesis.
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Edward C. Holmes. The Emergence and Evolution of SARS-CoV-2.. 2024. https://doi.org/10.1146/annurev-virology-093022-013037
Available scientific data point toward a natural zoonotic emergence linked to wildlife hosts and animal markets.
Stéphane Samson, Étienne Lord, V. Makarenkov. Assessing the emergence time of SARS-CoV-2 zoonotic spillover. 2024. https://doi.org/10.1371/journal.pone.0301195
Phylogenetic analyses of wild coronaviruses support a natural zoonotic spillover timeline and evolutionary dynamics.
Shunmei Chen, Cihan Ruan, Yutong Guo, Jia Chang, Hao-Ming Yan, Liang Chen, Yongzhong Duan, Guangyou Duan, J. Bei, Xin Li, Shan Gao. Emergence of crucial evidence catalyzing the origin tracing of SARS-CoV-2. 2024. https://doi.org/10.1371/journal.pone.0309557
The discovery of close relatives of SARS-CoV-2 in wild bat populations with key genomic features provides crucial evidence for its natural origin.
I. J.. Origin and Evolution of SARS-CoV-2: An Enigma. 2024. https://doi.org/10.23880/vij-16000338
Genomic and phylogenetic studies indicate that SARS-CoV-2 evolved in response to natural selection, consistent with typical zoonotic spillover events.
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