>> The sources of SARS and MERS were, I believe, found relatively quickly. > But it took nearly 15 years and extensive animal sampling to find a closely relate

>> The sources of SARS and MERS were, I believe, found relatively quickly. > But it took nearly 15 years and extensive animal sampling to find a closely related virus in bats. https://www.nature.com/articles/d41586-020-01541-z https://www.nature.com/articles/d41586-020-01541-z