https://www.selleckchem.com/pr....oducts/congo-red.htm
A significative proportion of patients with pulmonary-related COVID-19 initially present with « silent » or « happy » hypoxemia, a term denoting an absence of dyspnea or other respiratory distress symptoms in face of profound hypoxemia. COVID-19 is a multisystemic disease characterized by the diffusion of SARS-COV-2 through the blood and a widespread secondary immune response. Most of the organs are involved, including the brain and this translates into the development of acute encephalopathy and other complications. Silent hypoxemia