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COVID-19 overview: symptoms, transmission, and SARS-CoV-2
COVID-19 is a contagious disease caused by the SARS-CoV-2 coronavirus, which led to a global pandemic starting in January 2020. Symptoms can include fever, fatigue, cough, breathing difficulties, and loss of taste or smell, typically appearing one to fourteen days after exposure.
Approximately one-third of infected individuals do not exhibit noticeable symptoms. Among symptomatic patients, 81% experience mild to moderate symptoms, 14% develop severe symptoms such as hypoxia or lung involvement, and 5% face critical symptoms like respiratory failure or organ dysfunction. Older populations face a higher risk of severe illness.
Transmission occurs through respiratory particles, often in close proximity or via airborne particles in indoor settings, as well as through contact with contaminated surfaces. Individuals can remain contagious for up to 20 days, including those who are asymptomatic. Long-term effects, known as long COVID, can persist for months or years.
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Claims
What the coverage asserts, and how many sources carry each claim.
- [● 19 SOURCES] At least one-third of infected individuals do not show noticeable symptoms. anwartv2.com · www.fchp.es · www.letstravelfamily.com · www.radiolideranca103.com.br · amnoticias.cl · +14 more
- [● 19 SOURCES] Of symptomatic patients, 81% develop mild to moderate symptoms, 14% develop severe symptoms, and 5% develop critical symptoms. anwartv2.com · www.fchp.es · www.letstravelfamily.com · www.radiolideranca103.com.br · amnoticias.cl · +14 more
- [● 19 SOURCES] COVID-19 is caused by the SARS-CoV-2 coronavirus. anwartv2.com · www.fchp.es · www.letstravelfamily.com · www.radiolideranca103.com.br · amnoticias.cl · +14 more
- [● 19 SOURCES] Individuals can remain contagious for up to 20 days, including those without symptoms. anwartv2.com · www.fchp.es · www.letstravelfamily.com · www.radiolideranca103.com.br · amnoticias.cl · +14 more