inclusion criteria: * male or female, aged at least 18 years * assessed by the attending clinical team as appropriate for initial ambulatory (outpatient) management * a clinical diagnosis of highly-probable covid-19 infection (diagnosis by the attending clinical team) * no medical history that might, in the opinion of the attending clinician, put the patient at significant risk if he/she were to participate in the trial * able to understand written english (for the information and consent process) and be able to give informed consent

inclusion criteria: * male or female, aged at least 18 years * assessed by the attending clinical team as appropriate for initial ambulatory (outpatient) management * a clinical diagnosis of highly-probable covid-19 infection (diagnosis by the attending clinical team) * no medical history that might, in the opinion of the attending clinician, put the patient at significant risk if he/she were to participate in the trial * able to understand written english (for the information and consent process) and be able to give informed consent

inclusion criteria: - male or female, aged at least 18 years - assessed by the attending clinical team as appropriate for initial ambulatory (outpatient) management - a clinical diagnosis of highly-probable covid-19 infection (diagnosis by the attending clinical team) - no medical history that might, in the opinion of the attending clinician, put the patient at significant risk if he/she were to participate in the trial - able to understand written english (for the information and consent process) and be able to give informed consent

inclusion criteria: - male or female, aged at least 18 years - assessed by the attending clinical team as appropriate for initial ambulatory (outpatient) management - a clinical diagnosis of highly-probable covid-19 infection (diagnosis by the attending clinical team) - no medical history that might, in the opinion of the attending clinician, put the patient at significant risk if he/she were to participate in the trial - able to understand written english (for the information and consent process) and be able to give informed consent