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The World Health Organization has designated coronavirus a global emergency due to the virus’s rapid spread in China and other countries. The expansion poses a challenge to countries that lack the same level of development as China and the developed world in terms of health systems. China alone had reported 70,548 coronavirus infections as of February 17, 2020. They were centered primarily in Wuhan and its surroundings. According to a report by China’s national health authorities, the high infection rate has resulted in at least 1,770 deaths. Coronavirus has taken one life in France, while numerous other countries on different continents have confirmed fresh cases.

According to a Harvard University study, an infected person can spread coronavirus to an average of three additional persons, making it exceedingly contagious, similar to SARS. Additional information has shown that the virus may be more infectious since the publication of a Harvard report. It has now infected over 28,000 people, exceeding the number infected during the months-long SARS epidemic.

COVID-19 infection is not limited to people of high-infection-rate areas in China. Non-Chinese travelers to the Asian country, as well as those in close contact with people who have just visited, are also in danger of contracting the disease.
Coronavirus infection requires a prolonged period of incubation. For several days, a person will be unaware of its presence and hence will miss out on prompt diagnosis and treatment. Coronavirus incubation can last up to 14 days. Carriers no longer experience all symptoms. Carriers may continue to infect others, which is a risk. Fever and respiratory issues like coughing or difficulty breathing are the initial signs. A COVID-19 test can detect a condition only if the subject exhibits symptoms.

The director of the Centers for Disease Control and Prevention, Robert Redfield, indicated during a briefing that the virus is difficult to detect. Redfield noted that a person could be infected with a virus that is observable but then vanishes and reappears three days later. The CDC is currently unaware of coronavirus secretion’s natural history.

COVID-19 presents with similar early symptoms to respiratory infections, including a dry cough, fever, and shortness of breath. Additionally, some people report having a sore throat and a headache. It may present as a cold or severe flu.

Without treatment, the virus will mutate and begin attacking the lungs. Around 20% of persons develop secondary infections as a result of their initial infection. Once the virus penetrates lung cells, it begins reproducing, eventually destroying them. Coronaviruses are recognized by the immune system as intruders, prompting it to react in an attempt to contain the virus. Inflammation and lung tissue loss can also occur as a result of the immune system’s response to the invader. If the air sacs become clogged with fluid and irritated, pneumonia can develop, making breathing difficult.

The fact that COVID-19 has been linked to almost 1.800 deaths proves that coronavirus is dangerous. The death toll has surpassed that of the SARS pandemic in 2002–2003.

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