Write a short composition on the following topic in 250 words: "COVID-19"

COVID-19

COVID means 'Coronavirus Disease'. Since the disease was first detected in 2019, it is termed 'COVID-19'. It is a highly infectious respiratory disease caused by SARS-CoV-2.

Coronavirus spreads primarily through droplets discharged from the nose when an infected person coughs or sneezes without covering the mouth. The virus reaches the respiratory system through mouth, nose and eyes.

The most common symptoms of COVID-19 are dry cough, high fever, tiredness, shortness of breath, losing sense of smell, etc. Other symptoms include diarrhoea, sore throat, muscle or joint pain, headache, nausea, etc. COVID-19 can cause death.

A number of vaccines have proved effective against COVID-19. These vaccines can boost up our immune system to fight coronavirus. The available vaccines are Astra Zeneca, Pfizer, Moderna, Sinopharm, Sinovac, Sputnik V, etc.

Even after the vaccination, we can still be infected by COVID-19 and unknowingly spread it. Therefore, we have to practice respiratory etiquette and personal, hygiene strictly to prevent it. Washing hands with soap and water, using hand-sanitizer, wearing mask, covering mouth and nose with elbows or a tissue while sneezing and coughing may reduce the chance of getting or spreading the virus.

COVID-19, pandemic has already greatly affected millions of people worldwide socially, economically or psychologically. Still, we are hopeful and continuously fighting against it in every possible way.