Mask | How to use mask, prevent flu-causing viruses

Mask:  A mask is a piece of cloth or other material, that cover to all or parts of face to protect from germs or other harmful substances.There are found various types of masks :  Fitted N95 mask, surgical mask, Cotton/polyester masks, Valved mask, Bandanas...

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Covid-19- symptoms | risk of being affected | protect ourselves

What are the symptoms of The Covid-19?This virus affects the lungsSymptoms:- Two main symptoms are fever and persistent dry cough.Persistent coughing means that you cough for about an hour or you have had at least three cough stoic stoic stoics in 24 hours, meaning that your...

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