Outline: What corona viruses are - covid-19, the disease they cause-its origin - how it spreads - its symptoms - preventive measures against it -steps taken by the govemments for its prevention.
covid-19
Corona virus are a group of viruses that can cause diseases in both animals and humans. A virus can replicate only inside the living cells of an organism. Although some viruses are useful, there are also some harmful viruses that cause deadly diseases among animals and humans. The deadliest of them is the novel corona virus.
There are several corona viruses known to be circulating in different animal populations. Covid - 19 is the most recent disease which is caused due to the jump of these viruses from animal to human infection. It is said that corona virus may have silently existed in China as early as October 2019. The novel human corona virus disease covid-19 is known to have originated and was first reported in Wuhan, China. It is also said to be the first transmission of the viruses to humans. Subsequently it spread to other countries. It has now spread rapidly to many parts of the world.
Covid-19 affects different people in different ways. It is a respiratory condition caused by corona viruses. Some people are infected but don't notice any symptoms. However difficulty in breathing, common cold, sneezing, dry cough, fever etc. are its common symptoms. For most people covid- 19 causes mild illness. But it can make some people very ill. Even the disease can also be fatal. Older people and people suffering from high blood pressure, heart problems, diabetes etc. are easily infected by corona viruses.
There is no vaccine or reliable medicine to cure covid-19. Therefore, the only way for not being infected by the disease is to take some simple precautions. Washing hands with alcohol- based hand wash or soap, maintaining social distance, avoiding going to crowded places, touching eyes, nose and mouth frequently and staying at home in self-isolation are some of the preventive measures that can be taken against the spread of the disease.
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