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The transmission of COVID-19 is the passing of coronavirus disease 2019 from person to person. COVID-19 is mainly transmitted when people breathe in air contaminated by droplets/aerosols and small airborne particles containing the virus. Infected people exhale those particles as they breathe, talk, cough, sneeze, or sing.
Most symptoms, and their frequencies: ★ Report of the WHO-China Joint Mission on Coronavirus Disease 2019 (COVID-19). WHO 11–12. Retrieved on 29 February 2020.; Common symptoms: fever, dry cough, fatigue.
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic . The symptoms of COVID‑19 can vary but often include fever, [ 7 ] fatigue, cough, breathing difficulties , loss of smell , and loss of taste .
The most common symptoms of COVID-19 are looking much milder than they did at the beginning of the pandemic, new data shows. So, a COVID-19 infection could look and feel a lot like a mild cold ...
However, the COVID-19 of 2023 isn't the same as the COVID-19 of 2019 and 2020—the variant that uprooted our lives. Doctors share that the disease has evolved and so has population immunity.
English: Symptoms of coronavirus disease 2019 (COVID-19), the disease seen in the 2019–20 coronavirus outbreak, and is caused by the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It reflects the symptoms given at Coronavirus disease 2019 (§ Signs and symptoms), with references given there.
The symptoms of COVID-19 are often indistinguishable from those caused by other viruses spreading right now, the experts note. These include respiratory syncytial virus (RSV), influenza and ...
The original source of viral transmission to humans remains unclear, as does whether the virus became pathogenic before or after the spillover event. [9] [20] [81] Because many of the early infectees were workers at the Huanan Seafood Market, [82] [83] it has been suggested that the virus might have originated from the market.
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