COVID-19, caused by the novel coronavirus SARS-CoV-2, is a highly contagious respiratory illness. It spreads through respiratory droplets when an infected person coughs, sneezes, or talks. Common symptoms include fever, cough, shortness of breath, fatigue, muscle or body aches, loss of taste or smell, sore throat, and headache. Severe cases can lead to pneumonia, acute respiratory distress syndrome (ARDS), organ failure, and death, particularly in older adults and those with underlying health conditions. Prevention measures include wearing masks, practicing social distancing, washing hands frequently, and getting vaccinated. Prompt testing and isolation are crucial to controlling the spread of the virus.
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