Creating lab hybrids of coronavirus raises pandemic potential risks (2015) (nature.com)

From the article: "An experiment that created a hybrid version of a bat coronavirus — one related to the virus that causes SARS (severe acute respiratory syndrome) — has triggered renewed debate over whether engineering lab variants of viruses with possible pandemic potential is worth the risks..."

RootClaim.com was giving 81% chance C19 was an accidental lab release.