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 1.23 million[5] cases of have been reported in more than two hundred countries and territories,[13] resulting in more than 67,200 deaths.[5] More than 252,000 people have recovered.[5]The virus is mainly spread during close contact,[a] and by small droplets produced when people cough, sneeze, or talk.[4][15][14] These small droplets may be produced during breathing but the virus is not generally airborne.[4][15][16] People may also catch COVID-19 by touching a contaminated surface and then their face.[4][14] The virus can survive on surfaces up to 72 hours.[17] It is most contagious during the first three days after symptom onset, although spread may be possible before symptoms appear and in later stages of the disease.[18] Time from exposure to onset of symptoms is generally between two and fourteen days, with an average of five days
| Symptoms of COVID-19 | |
| Pronunciation | |
|---|---|
| Specialty | Infectious diseases |
| Symptoms | Fever, cough, shortness of breath, none[3][4] |
| Complications | Pneumonia, viral sepsis, acute respiratory distress syndrome, kidney failure |
| Usual onset | 5 days from exposure (may range between 2–14 days) |
| Causes | Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) |
| Risk factors | Travel, viral exposure |
| Diagnostic method | rRT-PCR testing, CT scan |
| Prevention | Hand washing, quarantine, social distancing |
| Treatment | Symptomatic and supportive |
| Frequency | 1,237,420[5] confirmed cases |
| Deaths | 67,260 (5.4% of confirmed cases)[5] |
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