500+ words Essay on Coronavirus disease |COVID- 19

500 + words essay on Corona Virus Disease|COVID-19 |Sympotms and Prevention of Corona Virus Disease in English for Students

Coronavirus disease (Covid-19) is a contagious disease. It is caused by a new strain of coronaviruses, SARS-CoV-2(severe acute respiratory syndrome coronavirus 2). Coronavirus is a type of virus. The viruses, under the microscope look like they are covered with pointed structures that surround them like a corona or crown.

Pandemic Disease

The World Health Organization in March 2020, declared coronavirus disease (Covid-19) a pandemic as it crossed over multiple countries or continents. It originated from Wuhan city in China. The outbreak quickly spread around the world. This disease has infected millions of people and is responsible for hundreds and thousands of deaths all over the world.

Symptoms of Coronavirus disease

According to the World Health Organization, coronavirus is a family of viruses. It can cause illness ranging from common cold to more severe disease such as severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS).

COVID-19 symptoms are ranging from mild to severe. It includes common cold, cough, fever or chills, shortness of breath or difficulty in breathing, body ache, sore throat, loss of taste or smell, diarrhea, headache, fatigue, nausea or vomiting and congestion or runny nose. COVID-19 can lead to pneumonia, severe respiratory problems, septic shocks, multi organ failure and even death.

Some group of people are more at risk of having severe illness. For example, old aged people and those with high blood pressure, heart and lung problems, diabetes, weakened immune system and cancer. The mortality rates also varies between countries.

After exposure to the virus, people may start showing symptoms within 2-14 days. This time after exposure and before having symptoms is called incubation period.

The COVID-19 spreads through droplets of saliva released into air when an infected person coughs, sneezes or talks.

When a person touches someone with infection or a surface that has the virus, and then touches their own nose, eyes or mouth, he catches the infection.

Prevention of Coronavirus Disease

Physical distancing is most effective in preventing the spread. It includes maintaining 6-feet or 2 meter distance from others. Prevention of this disease includes:

Frequent hand wash
Using face mask
Not touching your face
Quarantine for those who have symptoms.

People with symptoms should stay at home and should avoid coming into close contact with other people to prevent transmission. Covering the mouth and nose with a tissue or handkerchief while coughing or sneezing is also helpful to prevent transmission.

It is important to properly dispose off the used masks and tissues. Maintaining proper hygiene around the home and workplace is also important.

The standard method of diagnosis is by real time reverse transcription polymerase chain reaction (rRT-PCR).

Vaccine for Coronavirus Disease | COVID 19

After about one year of trials and research, the COVID-19 vaccine has been developed which provides acquired immunity against severe acute respiratory syndrome coronavirus 2.

Several COVID-19 vaccines showing efficacy as high as 95% in preventing symptomatic COVID-19 infections. The trials had been done in three phases. The first and historical mass vaccination program started in early December 2020.

Many countries planned distribution of vaccine that gives preference to those at high risk of exposure, and transmission, like health workers, front line workers and the elderly.

In India 16 January 2021 was the day when inoculation of the vaccine was started.

Second wave of COVID 19 in India

Two new variants of Sars-Cov-2 (B.1.617 and B.1.618) has now started to coming in sample analyzed in India. The Scientist of India are checking for mutation and new analyses showed that one of these changes are same one found in the Brazilian and South African variants of the coronavirus.

This particular change is known as E484K. It has been strongly linked that due to this, the virus is becoming more resistant to antibodies created by vaccines or a past infection.

Both these variants are now are considered as variants of interests (VOI). Scientists are studying whether it can make the coronavirus more transmissible, more dangerous or more resistant. They are researching that these two variants are the reason of the intensity of second wave of infection in India.

April 21, 2021:- Second wave of COVID-19 again infected millions of people of India. As per available data on April 21, 2021, more than 2000 people lost their lives in a single day across India. Approximately 3,00,000 people are got infections in a single day.

All adults will become eligible for coronavirus vaccine from May 1, 2021 and doses can be sold through the market.

Conclusion

Rightly said, ‘PREVENTION IS BETTER THAN CURE’.The most we can do to prevent ourselves from this infection is to maintain social distance, wash or sanitize our hands regularly, cover our nose and mouths with a mask or cloth and keep our surroundings healthy, clean and hygienic.