From the Introduction: "The novel coronavirus (SARS-CoV-2) that causes the disease known as COVID-19 [coronavirus disease 2019], a respiratory tract infection spread by contact with droplets onto mucous membranes. As a newly emergent disease, the global population has no immunity and it therefore causes high morbidity and mortality. Most people with COVID-19 develop only mild or uncomplicated illness with flu-like symptoms of muscle pain, fever and mild respiratory symptoms. However, unlike seasonal influenza, up to 14% of people infected with the virus develop serious COVID-19 disease (generally pneumonia) that requires hospitalization and oxygen support, and up to 5% require admission to an intensive care unit. These most severe cases may develop what is known as Acute Respiratory Distress Syndrome (ARDS) where the lung becomes stiff and oxygenation only can be maintained by mechanical ventilation. Other severe complications of COVID-19 include septic shock and multi-organ failure. Older people and those with co-morbidities appear to be at significantly higher risk of disease. This section of the PIH [Partners in Health] Guide to COVID-19 elaborates guidelines for the management of patients with suspected or confirmed COVID-19 at home, at the clinic and at the hospital."
Partners in Health
Partners in Health: https://www.pih.org/