Coronaviruses are a group of viruses that cause diseases in mammals and birds that include diarrhea in cows and pigs, and upper respiratory disease in chickens. In humans, the virus causes respiratory infections, which are often mild, but in rare cases are potentially lethal. 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.
Cite this article:
Sneha R. Dubey. Corona Virus. Int. J. Nur. Edu. and Research. 2020; 8(3):411-414. doi: 10.5958/2454-2660.2020.00091.5
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