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Mar 1, 2023 · Getty Images. The lab-leak theory has been strongly rejected by China. More than three years after Covid-19 was detected in the Chinese city of Wuhan, the question of how the virus first...
Jun 7, 2023 · When health emergencies arise, scientists seek to discover the cause — such as how a pathogen emerged and spread — because this knowledge can enhance our understanding of risks and strategies for...
Feb 26, 2022 · Analyzing a wide range of data, including virus genes, maps of market stalls and the social media activity of early Covid-19 patients across Wuhan, the scientists concluded that the coronavirus...
Jan 24, 2020 · The outbreak is caused by a coronavirus. Common human coronaviruses cause mild to moderate upper respiratory symptoms, including the common cold, while more severe types can cause pneumonia and...
Jul 27, 2022 · Jul 27, 2022 6:20 PM EDT. Leave your feedback. Transcript Audio. From the start of the pandemic, scientists have tried to determine exactly where and how the novel coronavirus spread to humans....
Mar 30, 2021 · March 30, 2021. • 5 min read. A World Health Organization report released today says that SARS-CoV-2, the virus that causes COVID-19, most likely leapt from animals to humans through an...
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention.
