Coronavirus has been declared a global emergency by the World Health Organization due to the virus’s rapid growth in China and other nations. The expansion poses a threat to countries with less developed health systems than China and the developed world. As of February 17, 2020, China alone had reported 70,548 coronavirus cases. The majority of them were concentrated in Wuhan and its environs. According to a report by China’s national health authority, the high rate of infection has resulted in the deaths of at least 1,770 people. Coronavirus has claimed one life in France, and several other nations across continents have reported new cases of the virus.

According to a Harvard University study, a person infected with coronavirus can spread it to an average of three other people, making it extremely contagious, similar to SARS. Since the publication of a Harvard report, further information has revealed that the virus may be more infectious. It has already infected over 28,000 people, surpassing the figure during the months-long SARS outbreak.

COVID-19 is not just infecting residents of high-infection-rate locations in China. Non-Chinese visitors to the Asian country or those who come into close touch with those who have recently traveled there are also at risk of catching the illness.
Coronavirus infection requires a lengthy incubation time. A person will be unaware of its existence for several days and hence will miss out on prompt diagnosis and treatment. Coronavirus incubation is estimated to extend up to 14 days. Carriers do not exhibit all symptoms these days. A risk is that carriers can continue to infect others. The symptoms begin with a fever and respiratory problems such as coughing or difficulty breathing. A COVID-19 test detects a condition only when a person exhibits symptoms.

During a briefing, Robert Redfield, director of the Centers for Disease Control and Prevention, stated that the virus is difficult to detect. Redfield explained that a person could have a detectable virus that then vanishes and reappears three days later. The CDC is currently unaware of the natural history of coronavirus secretion.

COVID-19’s initial symptoms are comparable to those of respiratory infections, such as a dry cough, fever, and shortness of breath. Additionally, some individuals experience a sore throat and headache. It may have the appearance of a cold or the severe flu.

Without therapy, the virus will evolve to attack the lungs. Around 20% of people get more serious illnesses as a result of their initial infection. As soon as the virus infects lung cells, it begins replicating, killing them in the process. Coronaviruses are recognized as intruders by the immune system, causing it to react in an attempt to confine the virus. The immune system’s response to the invader can also result in inflammation and lung tissue destruction. If the air sacs begin to fill with fluid and become inflamed, the result may be pneumonia, which makes breathing difficult.

The fact that more than 1.800 deaths have been reported as a result of COVID-19 demonstrates that coronavirus is lethal. The death toll has surpassed that of the 2002-2003 SARS pandemic.

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