Elicits MERS-CoV RBD-specific Abs in mice (IgG, IgG1, IgG2a, and IgG2b) and NHPs (IgG), neutralizing pseudotyped (mouse: < 1:5 × 102) and live (NHPs: < 1:5 × 102) MERS-CoV (EMC2012 strain)