betacoronavirus 1 betacoronavirus 1 betacoronavirus 1 is a species of coronavirus which infects humans and cattle. the infecting virus is an enveloped, positive-sense, single-stranded rna virus and is a member of the genus betacoronavirus and subgenus embecovirus. like other embecoviruses, it has an additional shorter spike-like surface protein called hemagglutinin esterase (he) as well as the larger coronavirus spike protein. betacoronavirus 1 transmission electron micrograph of human coronavirus oc43 virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: pisuviricota class: pisoniviricetes order: nidovirales family: coronaviridae genus: betacoronavirus subgenus: embecovirus species: betacoronavirus 1 member viruses bovine coronavirus bovine coronavirus mebus equine coronavirus equine coronavirus nc99 human coronavirus oc43 human coronavirus oc43 atcc vr-759 porcine hemagglutinating encephalomyelitis virus porcine hemagglutinating encephalomyelitis virus vw572 synonyms bovine coronavirus canine respiratory coronavirus equine coronavirus human coronavirus oc43 human enteric coronavirus porcine hemagglutinating encephalitis virus porcine hemagglutinating encephalomyelitis virus