The name
"coronavirus" is derived from the Latin corona and the Greek
"ÎșÎżÏÏΜη" (korone, "garland, wreath"), meaning crown or
halo. Corona virus are comes under a broad group of viruses that belonging to
the nidovirales order, which includes coronaviridae, arteriviridae and
roniviridae families. In the four groups of coronaviridae are further
subdivided like alpha, beta, gamma and delta corona viruses. In humans, the
virus causes respiratory infections, often mild, but in rare cases potentially
lethal. There are no vaccines or antiviral drugs that are approved for
prevention or treatment. Corona viruses are enveloped viruses with a
positive-sense single-stranded RNA genome and with a nucleocapsid of helical
symmetry. The genomic size of corona viruses ranges from approximately 26 to 32
kilobases, the largest for an RNA virus.
What is Coronavirus?
Corona
virus is a family of viruses that commonly affect the respiratory tract of
mammals, along humans. They are associated with the common cold, pneumonia,
and severe acute respiratory syndrome (SARS) and can also affect the gut.
Corona
viruses were given their name based on the crown-like projections on their
surfaces. "Corona" in Latin means "halo" or
"crown." Among humans, infection most often occurs during the winter
months as well as early spring. These
viruses are responsible for between 15 and 30 percent of common colds. Over the
last 70 years, scientists have found that corona viruses can infect mice, rats,
dogs, cats, turkeys, horses, pigs, and cattle.
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