Merbecovirus

Merbecovirus is a subgenus of viruses in the genus Betacoronavirus, including the human pathogen Middle East respiratory syndrome–related coronavirus (MERS-CoV). The viruses in this subgenus were previously known as group 2c coronaviruses.

Structure
The viruses of this subgenus, like other coronaviruses, have a lipid bilayer envelope in which the membrane (M), envelope (E) and spike (S) structural proteins are anchored.