"9-category ordinal severity scale ranging from 0 (asymptomatic patient) to 8 (a critically ill patient with tracheal intubation, mechanical ventilation and advanced ICU management"

"The BCRSS has been developed through multiple interactions by a multidisciplinary team of intensive care physicians, infectious disease specialists, pneumologists, internists, rheumatologists and immunologists to rapidly assess the patients' respiratory condition. BCRSS classifies the patients' severity based on the need for oxygen supplementation and ventilatory support, offering a step-up therapeutic approach for the use of antiviral and anti-inflammatory drugs. The scale was rapidly adopted at a regional level and used to define pragmatically the patient's response to treatment "