Human Corona Viruses

 

Human coronaviruses

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.

Most coronaviruses are not dangerous. Almost everyone gets a coronavirus infection at least once in their life, most likely as a young child.

 

There are seven known strains of human coronaviruses.

Common human coronaviruses, including types 229E, NL63, OC43, and HKU1, usually cause mild to moderate upper-respiratory tract illnesses, like the common cold. Human coronaviruses can sometimes cause lower-respiratory tract illnesses, such as pneumonia or bronchitis. This is more common in people with cardiopulmonary disease, people with weakened immune systems, infants, and older adults.

 

Two other human coronaviruses, MERS-CoV and SARS-CoV have been known to frequently cause severe symptoms. MERS symptoms usually include fever, cough, and shortness of breath which often progress to pneumonia. About 3 or 4 out of every 10 patients reported with MERS have died.

 

In early January 2020, the World Health Organization identified a new type: 2019 novel coronavirus (2019-nCoV) in China. Hundreds of patients have been infected with the virus across China, with central Hubei province the worst-affected.

 

Symptoms of China Corona Virus

·Starts with a fever, followed by a dry cough and then, after a week, leads to shortness of breath.

·In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome, kidney failure and even death.

·Most victims are elderly people, suffering from other chronic diseases including Parkinson's and diabetes.

 

How to reduce risk of corona virus

·Avoid close contact with people suffering from acute respiratory infections;

·Wash hands regularly, especially after direct contact with ill people or their environment.

·Avoid unprotected contact with farm or wild animals.

·Avoiding eating raw or undercooked animal products is also advised.

 

Those with symptoms of coronavirus should practise "cough etiquette", including maintaining distance, covering coughs and sneezes with disposable tissues or the inside of an elbow, and washing hands.

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