The primary endpoint will be the composite of:• hospitalization or emergency department visit within 30 days of randomizationand/or• oxygen saturation <92% (as measured on study visit or at home by pulse oximetryby two consecutive readings)• death (by 30 days following randomization)

The primary endpoint will be the composite of:• hospitalization or emergency department visit within 30 days of randomizationand/or• oxygen saturation <92% (as measured on study visit or at home by pulse oximetryby two consecutive readings)• death (by 30 days following randomization)