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CoronaVirus- What make it deadly? Coronavirus has exceptionally large single-stranded RNA genomes - approximately 26,000 to 32,000 bases or RNA "letters". Coronavirus particles are surrounded by a fatty outer layer, called an envelope and usually appearing spherical, as seen under an electron microscope, with a crown of club-shaped spikes or "corona" on their surface. Coronaviruses are a group of viruses that commonly cause mild diseases, such as the common cold. However, some types of coronaviruses can infect the lower airways, causing serious diseases such as pneumonia or bronchitis. Most people are infected with coronaviruses at some point in their lives and most of these infections are harmless. A notable exception is the new coronavirus that causes Kovid-19 disease. Covid -19 Third party image reference The virus that causes Covid-19 is known as SARS-CoV-2. It emerged for the first time in Wuhan, China in late 2019. The outbreak has since spread to China and ot...

Third party image reference Read in detail Things to know about corona viruses   Corona viruses are types of viruses that commonly affect the respiratory tracts of birds and mammals, including humans. Doctors associate them with the common cold, bronchitis, pneumonia, and severe acute respiratory syndrome (SARS), and they can also affect the bowels. Over the past 70 years, scientists have found that corona viruses can infect mice, rats, dogs, cats, turkeys, horses, pigs and cattle. Sometimes, these animals can deliver corona virus to humans. Recently, authorities identified a new corona virus outbreak in China that has now reached other countries. It is named Corona virus disease 2019, or COVID-19. These viruses are usually responsible for more common cold than serious diseases. However, corona viruses are also behind some of the more severe outbreaks. In this article, we explain various types of human corona viruses, their symptoms and how they are trans...