Corona Crisis : some unanswered questions, everybody wants to know.

It seems like such a crisis has been going on for eternity. However, people came to know about Novel Coronavirus (COVID-19) at the end of December last year. The virus has now dissipated to most countries of the world from Wuhan of China's Hubei Province.

Scientists from all over the world are working hard to comprehend this new type of virus. Still not much is known about the virus. Now we have all become part of the test. We are trying to find the answers to many questions. Many of the questions are unsolved. The BBC Online has highlighted nine answered questions.
Corona Crisis : some unanswered questions, nobody knows.

1.How many people are affected? 
This is one of the most frequently asked questions about coronavirus. This is also the most important question. There is confusion over the total number of people who suffer from the virus but the symptoms do not appear. It is believed that many of the signs do not appear as they carry the virus, many do not feel the symptoms.

2. How awful is it really?
Until we know, how many people have been infected, it is impossible to estimate mortality. It is assessed that 1 percent of the victims are dying. However, the patients having symptoms which are not evident will be lower if the number of infected people is higher.

3.Details of symptoms
The main symptoms of coronavirus infection are fever and dry cough. You should look at these symptoms to understand whether they are infected or not. Some of the victims have had throat, headache and diarrhoea. The idea of ​​one of these is going to be established that because of infection, some people are losing their olfactory force.
The most important question, however, is whether some of the infected have mild symptoms such as runny nose or sneezing.
Research says people with such symptoms are potentially infected, who do not know that they are carrying the virus.
Corona Crisis : some unanswered questions, nobody knows.

4. What is the role of children in spreading the virus?
Children must be infected with the virus. Most of them can cause mild symptoms. However, the death rate of children is much lower than other age groups. Children usually play a role in the spread of any disease. This is why children are also called super-spreaders. Because they mix with more people, go play on the field. However, in the case of coronavirus, they are not sure that they are helping to spread it at any stage.

5. Where did the virus actually come from?
The virus spread from the animal market in Wuhan, China, at the end of 2019. Coronavirus is officially known as SARS-CoV-2, which infects bats. It is thought that the virus spreads through bats to an unknown species of animal and later spreads to humans. Little is known about the 'missing link' (unknown animal) which may be the source of further infections.

6. Will the number of infected reduce in the summer?
Cold, coughing, the fever usually occurs more during the winter than in summer. It is not known whether there will be any change in the spread of the virus over the summer. Scientific advisers to the UK government have warned that it is not certain whether the coronavirus has any seasonal effects. If there is an effect, they think it is likely to be something smaller than cold and fever. And if the virus is dormant throughout the summer, it is likely to grow dangerously in the winter. At that time, hospitals are constantly struggling to cope with patients suffering from winter illness.

7. Why some people's symptoms are so severe?
For most people, infection with Covid-19 is mild. In 20% of cases, illness is severe. But why? In this case, every human being is involved with the immune system. There are also genetic issues.

8. How long could the immune system last and is it possible to be infected in the second time?
Estimated information is more than evidence that how long the immune system could survive to fight against the virus. If the patient is successful in fighting the virus, his body must develop immunity. However, if the disease lasts only a few months, long-term data is lacking. Rumour has it that after testing a second victim, misinformation is saying that he is free of virus. The question of prevention is important to understand what will happen in the long run.

9. Will there be any change in the virus?
Viruses change all the time. However, for the most part, their genetic behaviour does not change significantly. As a general rule, you expect the effect of virus to decrease dramatically once it lasts for a long time. However, it cannot be said with certainty. The concern is that if the virus changes, the immune system will no longer be able to detect it, and the specific vaccine will no longer work. As like it doesn't work for fever.

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