Severe acute respiratory syndrome coronavirus 2,, also known as Wuhan Virus, previously known by the provisional name 2019 novel coronavirus, is a positive-sense single-stranded RNA virus.
Ribonucleic acid is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes.
A positive-sense single-stranded RNA virus is a virus that uses positive sense, single-stranded RNA as its genetic material.
Coronaviruses are a group of viruses that cause diseases in mammals and birds.
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It is contagious in humans and is the cause of the ongoing 2019–20 coronavirus outbreak, an epidemic of coronavirus disease 2019 that has been designated a Public Health Emergency of International Concern by the World Health Organization.
A Public Health Emergency of International Concern is a formal declaration by the World Health Organization of "an extraordinary event which is determined to constitute a public health risk to other States through the international spread of disease and to potentially require a coordinated international response", formulated when a situation arises that is "serious, sudden, unusual or unexpected", which "carries implications for public health beyond the affected State's national border" and "may require immediate international action".
The 2019–20 coronavirus outbreak is an ongoing global outbreak of coronavirus disease 2019 that has been declared a Public Health Emergency of International Concern by the World Health Organization.
Coronavirus disease 2019 is an infectious disease caused by severe acute respiratory syndrome coronavirus 2, a virus closely related to the SARS virus.
Deadly coronavirus may not have originated in Wuhan seafood market, Chinese scientists say by South China Morning Post
An intermediate reservoir such as a pangolin is also thought to be involved in its introduction to humans.
Pangolins or scaly anteaters are mammals of the order Pholidota.
From a taxonomic perspective SARS-CoV-2 is classified as a strain of the species severe acute respiratory syndrome-related coronavirus.
Severe acute respiratory syndrome-related coronavirus is a species of coronavirus that infects humans, bats and certain other mammals.
To avoid confusion with the disease SARS, the WHO sometimes refers to the virus as "the virus responsible for COVID-19" in public health communications.