As far as I can tell, yes: > Coronavirus non-structural proteins provide extra fidelity to replication, because they confer a proofreading function, which is l

As far as I can tell, yes: > Coronavirus non-structural proteins provide extra fidelity to replication, because they confer a proofreading function, which is lacking in RNA-dependent RNA polymerase enzymes alone https://en.wikipedia.org/wiki/Coronavirus#Replication https://en.wikipedia.org/wiki/Coronavirus#Replication