A novel coronavirus ( CoV ) <*> emerged in the Middle East region in 2012 .
that chains of transmission were not self - sustaining ,
A novel coronavirus ( CoV ) that causes a severe lower respiratory tract infection in humans , emerged in the Middle East region in 2012 .
Although human to human transmission has been demonstrated , analysis of human MERS clusters indicated that chains of transmission were not self - sustaining , especially when infection control was implemented .