Hardly ultimate, but coronaviruses are apparently (in)famous for a relatively high propensity to cross species barriers. This review from 2017 looks very relev

Hardly ultimate, but coronaviruses are apparently (in)famous for a relatively high propensity to cross species barriers. This review from 2017 looks very relevant https://doi.org/10.1016/j.coviro.2017.01.002 https://doi.org/10.1016/j.coviro.2017.01.002 I'll leave the rest to people who may have specialist level competence on the topic.