COVID-19 is an acute infectious respiratory disease caused by a newly discovered coronavirus (SARS-CoV-2).
Novel coronavirus (COVID-19) is an infectious disease caused by a newly discovered coronavirus. People who are infected with COVID-19 might experience mild to moderate respiratory illness. COVID-19 was declared as a pandemic by the WHO. It spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes. There are common human coronaviruses, known as alpha(229E), beta(NL63), gamma(OC43), and delta(HKU1). Usually, these viruses would cause mild to moderate upper-respiratory tract illnesses, like the common cold. There is a brief history of the coronavirus, which states that the first human coronavirus was identified in the 1960s. There are seven coronaviruses, which could cause disease in humans, in that four viruses, are endemic that cause mild to moderate infections in humans. These viruses are found all over the world and are responsible for about 10-15% of common colds. Moreover, the coronavirus cases have been increasing day by day, since the pandemic started. Globally 199,36,210 cases have been recorded, with 732,499 deaths as of August 11, 2020. The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.
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