Coronavirus

"A single coronavirus causes diseases in mammals and birds, but humans can have respiratory infections that're typically mild, including the common cold. However, rarer formers like SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome) can be deadly. Not to mention, cows and pigs can have diarrhea while chickens can have their upper respiratory disease. We haven't got any vaccines and/or antiviral drugs that're approves for preventing and/or treating this horrific virus. Now what will it be for Kennedy and Redfield for all of this?"

--Su Ji-Hoon, Coronavirus Over Vienna

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 humanity before it being spread to infections.

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 humanity after Leon S.Kennedy and Claire Redfield have been framed and very-criticized for bioterrorist attack and make Vienna became first European city under Coronavirus infection in USRAC War.