Cotten, M., Watson, S., Kellam, P., et al. (2013). Transmission and Evolution of the Middle East Respiratory Syndrome Coronavirus in Saudi Arabia: a Descriptive Genomic Study. Lancet. 382(9909): 1993-2002.
Full genome deep sequencing was done on nucleic acid extracted directly from PCR-confirmed clinical samples from patients with confirmed MERS-CoV demonstrated that transmission within Saudi Arabia is consistent with either movement of an animal reservoir, animal products, or movement of infected people.