Coronavirus disease 2019 ( COVID-19 ) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). [6] The disease was first identified in December 2019 in Wuhan , the capital of China's Hubei province, and has since spread globally, resulting in the ongoing 2019–20 coronavirus pandemic . [7] [8] Common symptoms include fever , cough , and shortness of breath . [9] Other symptoms may include muscle pain , diarrhea , sore throat , loss of smell , and abdominal pain. [3] [10] [11] While the majority of cases result in mild symptoms, some progress to viral pneumonia and multi-organ failure . [7] [12] As of 5 April 2020, more than 1.22 million [5] cases of have been reported in more than two hundred countries and territories, [13] resulting in more than 66,500 deaths. [5] More than 252,000 people have recovered. [5]
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