Coronavirus

Coronaviruses are a group of viruses that cause diseases in mammals and birds. In humans, the viruses cause respiratory infections which are typically mild including the common cold but rarer forms like SARS and MERS can be lethal. In cows and pigs they may cause diarrhea, while in chickens they can cause an upper respiratory disease. There are no vaccines or antiviral drugs that are approved for prevention or treatment.

Coronaviruses are viruses in the subfamily Orthocoronavirinae in the family Coronaviridae, in the order Nidovirales. Coronaviruses are enveloped viruses with a positive-sense single-stranded RNA genome and with a nucleocapsid of helical symmetry. The genomic size of coronaviruses ranges from approximately 26 to 32 kilobases, the largest for an RNA virus.

The name "coronavirus" is derived from the Latin corona, meaning crown or halo, which refers to the characteristic appearance of the virus particles (virions): they have a fringe reminiscent of a royal crown or of the solar corona.

In When the Cold Breeze Blows Away, it would be first appeared before the World War III when 2019–20 Wuhan coronavirus outbreak was appeared in China. When the World War III was happened, now the nations and the factions who joined the Coalition of the Red Star or the Grand Alliance must find and research about create the corona vaccines and some cures for save their humans.

Also, in during the USRAC War, the New Central Powers and the Beleninsk Pact will research about Coronaviruses, then they will find and create the corona vaccines and some cures for rescue and save the humans.