They said: Another key quote comes from the introduction: The study was called “Severe Acute Respiratory Syndrome Coronavirus as an Agent of Emerging and Reemerging Infection” and it was published in October 2007 by Clinical Microbiology Reviews, a journal by the American Society for Microbiology. You can access the full study here. Reference: “Severe Acute Respiratory Syndrome Coronavirus as an Agent of Emerging and Reemerging Infection” by Vincent C. C. Cheng, Susanna K. P. Lau, Patrick C. Y. Woo and Kwok Yung Yuen, 12 October 2007, Clinical Microbiology Reviews.DOI: 10.1128/CMR.00023-07