Question

what do you know about covid19 and it's difference strains.also explain through which mechanism it's effect physiology of respiratory system​

Answer 1

Answer:

➡️Severe acute respiratory syndrome coronavirus-2 is a novel coronavirus that emerged in late 2019, causing a pandemic.

➡️Severe acute respiratory syndrome coronavirus-2 appears to cause predominantly respiratory disease in the form of viral pneumonia.

➡️Severe cases of severe acute respiratory syndrome coronavirus-2 infection can lead to hypoxemic respiratory failure with features of the acute respiratory distress syndrome.

➡️Severe acute respiratory syndrome coronavirus-2 infection also may increase the risk of arterial of venous thromboembolism, by mechanisms that are not fully

Answer 2

Explanation:

The severe acute respiratory syndrome coronavirus-2 emerged as a serious human pathogen in late 2019, causing the disease coronavirus disease 2019 (COVID-19). The most common clinical presentation of severe COVID-19 is acute respiratory failure consistent with the acute respiratory distress syndrome. Airway, lung parenchymal, pulmonary vascular, and respiratory neuromuscular disorders all feature in COVID-19. This article reviews what is known about the effects of severe acute respiratory syndrome coronavirus-2 infection on different parts of the respiratory system, clues to understanding the underlying biology of respiratory disease, and highlights current and future translation and clinical research questions.Coronaviruses are important human pathogens, and research into their behavior is nearly a century old.1 In late 2019, a novel coronavirus emerged in Wuhan, China, and then spread worldwide. In February 2020, the World Health Organization designated coronavirus disease 2019 (COVID-19) as the name of the human disease caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), which was previously known as 2019-nCoV (2019 novel coronavirus).2 Viral pneumonia is the most frequent serious clinical manifestation of COVID-19, prominently featuring fever, cough, dyspnea, hypoxemia, and bilateral infiltrates on chest radiography.3–6 Dry cough is more common than a productive cough.6 Dyspnea appears after a median time of 5 to 8 days.5,6 Severe hypoxemic respiratory failure consistent with the Berlin definition of the acute respiratory distress syndrome (ARDS) occurs in a significant proportion of patients with COVID-19 pneumonia.7,8 Patients who require mechanical ventilation have a high risk of death.9