Betacoronavirus the Latin “corona” meaning crown or halo, referring to their image under electron microscopy of crown-like spikes on their surface similar to the solar corona. This morphology is created by the viral spike (S) peplomers, which are proteins that populate the surface of the virus and determine host tropism. The order Nidovirales is named for the Latin nidus, which means nest. It refers to this order’s production of a 3' co-terminal nested set of subgenomic mRNA's during infection. Betacoronavirus Betacoronaviruses are one of four genera of coronaviruses of the subfamily "Coronavirinae" in the family "Coronaviridae", of the order "Nidovirales". They
Halo (franchise) "Dead or Alive 4", a product of the collaboration between Tecmo's Team Ninja and Microsoft's Bungie. The "Halo" theme tune was also available as downloadable content for "". An Arbiter appears as a playable character in "Killer Instinct: Season Three", alongside a "Halo"-themed stage. In "Forza Horizon 4" one level has you racing across the map in the Warthog as the Master Chief, with the Halo ring visible in the sky, Cortana on the radio and various Covenant based obstacles to avoid. In December 2014, 343 Industries general manager Bonnie Ross expressed Microsoft's aim for the "Halo" series to last