![]() The virus spread from the People’s Republic of China through international air travelers. A total of 5 million is way too many the outbreak could no longer be contained. 3, 4 On January 23, the Chinese government quarantined Wuhan, but it was too late-an estimated five million people had left Wuhan to celebrate the Chinese New Year, whereas others left when it became known that the city would be locked down. In December 2019, in Wuhan, a city of 11 million, the virus mutated, as viruses do, and became capable of easily spreading to other human hosts-and thus, the pandemic started. 2 It seems that the virus had infected people in rural People’s Republic of China between October and December 2019, but it was not capable of efficiently spreading from human to human. There, in the early December 2019, a person from rural People’s Republic of China arrived harboring an infection of a new coronavirus that the WHO initially termed “2019 novel coronavirus.” 1 This virus, the cause of coronavirus disease 2019 (COVID-19), is now called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The current pandemic started as an outbreak in Wuhan, the largest city in Hubei Province, in the People’s Republic of China. The Origin and the Initial Spreading of the Pandemic In this article, we discuss these issues. By sharing accurate information, physicians, health professionals, and scientists play a key role in addressing myths and anxiety, help public health officials enact measures to decrease infections, and provide the best care for those who become sick. population plans to receive a COVID-19 vaccine. Because of disinformation, only approximately 50% of the U.S. Numerous therapies are being developed, and rapid improvements are anticipated. Countries that include only patients in which COVID-19 was the main cause of death, rather than a cofactor, have lower death rates. The United States includes all patients who died with a positive test, whether they died because of, or with, SARS-CoV-2. Belgium has the highest death rate at 154.9 per 100,000 persons, because it includes anyone who died with symptoms compatible with COVID-19, even those never tested for SARS-CoV-2. ![]() Estimates of the COVID-19 mortality rate vary because the definition of COVID-19–related deaths varies. Healthy individuals younger than 40 years very rarely die of COVID-19. Individuals more than 65 years old, those affected by obesity, diabetes, asthma, or are immune-depressed owing to cancer and other conditions, are at a higher risk of hospitalization and of dying of COVID-19. During this pandemic, cases have been identified as those with a positive SARS-CoV-2 polymerase chain reaction test, including approximately 70% who were asymptomatic-this has caused unnecessary anxiety. In medicine, cases are identified as those who become ill. Among them, approximately 25% require hospitalization. About 30% of individuals infected with SARS-CoV-2 develop coronavirus disease 2019 (COVID-19) disease. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spreads mainly by means of aerosols (microdroplets) in enclosed environments, especially those in which temperature and humidity are regulated by means of air-conditioning.
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