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SARS-CoV-2 has a slow evolutionary rate, yet during pandemic rapid transmission enabled it to acquire significant genetic diversity, resulting in the emergence of variants that can impact transmission and infectivity.
COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2. The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms.
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention.
26 wrz 2003 · 18 April 2024. Leading health agencies outline updated terminology for pathogens that transmit through the air. 26 September 2003. Inadequate plumbing systems likely contributed to SARS transmission. 2 September 2003. Amid SARS concerns, WHO urges influenza vaccinations for high-risk groups. 21 August 2003.
In this study, the infectious mechanism of the coronavirus is explained with a focus on different variants and their respective mutations, which play a critical role in the increased transmissibility, infectivity, and immune escape of the virus.
COVID-19 is the disease caused by the SARS-CoV-2 coronavirus. It usually spreads between people in close contact. COVID-19 vaccines provide strong protection against severe illness and death. Although a person can still get COVID-19 after vaccination, they are more likely to have mild or no symptoms.
25 sie 2020 · D, Pathological manifestations of lung tissue in a patient with severe pneumonia caused by SARS-CoV-2 showing diffuse alveolar damage with edema and fibrine deposition, indicating acute respiratory distress syndrome with early fibrosis (magnification, ×10).
