COVID-19, also known as the coronavirus disease, is a highly contagious respiratory illness caused by the SARS-CoV-2 virus. It first emerged in late 2019 and quickly developed into a global pandemic. The virus primarily spreads through respiratory droplets when an infected person coughs, sneezes, or talks. Common symptoms of COVID-19 include fever, cough, fatigue, shortness of breath, loss of taste or smell, and body aches. However, the severity of symptoms can vary widely, ranging from mild to
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