Description: English: MERS-CoV particles as seen by negative stain electron microscopy. Virions contain characteristic club-like projections emanating from the viral membrane. Date: 31 May 2013, 21:02:11. Source: https://www.cdc.gov/coronavirus/mers/photos.html. Author: Maureen Metcalfe/Cynthia Goldsmith/Azaibi Tamin. Other versions: MERS-Co-V1.jpg : MERS-CoV1.jpg.