Transmission of viruses from one species to another is not unusual in nature. Despite this, evolutionarily successful transmissions are rare. Such events can cause pandemics and are followed by host-virus coevolution procedures that can increase the fitness potential of viruses. In this perspective article, I recognize eight main types of trans-species viral transmission. I consider two of them as evolutionarily successful, explaining why coronavirus SARS-CoV-2 could be one of them.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7201112 | PMC |
| http://dx.doi.org/10.1007/s00239-020-09947-z | DOI Listing |
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