WHAT IS CORONAVIRUS?

Introduction :-

coronavirus (covid-19) is severe infectious disease which can be transmitted to any human being .According to doctors {covid-19} its a respiratory tract infection.

It spreads through person to person contact. Infection ranges from mild to serious. 

In early 2020, after a December 2019 outbreak in China, the World Health Organization identified SARS-CoV-2 as a new type of coronavirus. The outbreak quickly spread around the world.

Symptoms of covid-19:-

•  main symptoms include:-

• Fever
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• Coughing
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• Shortness of breath
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• Fatigue
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• Chills, sometimes with shaking
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• Body aches
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• Headache
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• Sore throat
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• Loss of smell or taste
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• Nausea
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• Diarrhea

Brief History:-

 The first coronavirus was discovered in chickens in 1930s. After few decades the first human coronavirus came to be identified in 1960s. To date, seven coronaviruses have the ability to cause disease in humans. Four are endemic (regularly found among particular people or in a certain area) and usually cause mild disease, bubut three can cause much more serious and even fatal disease.

SARS - cov( SEVERE ACUTE RESPIRATORY SYNDROME)  was first detected in november 2002. The cause of this outbreak wasn’t confirmed until 2003 when the genome of the virus was identified by Canada’s National Microbiology Laboratory. Sars bears many similarities to the current pandemic of COVID-19. Older people were much more likely to suffer severe disease and symptoms included fever, cough, muscle pain and sore throat. But there was a much greater chance of dying if you had Sars. From 2002 until the last reported case in 2014, 774 people died.