A Real World Study of Bamlanivimab in Participants With Mild-to-Moderate Coronavirus Disease 2019 (COVID-19)

Inclusion Criteria: * Are currently not hospitalized. * Have one or more mild or moderate COVID-19 symptoms. * Must have first positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral infection determination and as soon as possible within 10 days of symptom onset * Are males or non-breastfeeding females. * Contraceptive use by males or females should be consistent with local regulations for those participating in clinical studies. * Are at high risk for progressing to severe COVID-19 and/or hospitalization. Exclusion Criteria: * Participants who: * are hospitalized due to COVID-19, OR * require oxygen therapy due to COVID-19, OR * require an increase in baseline oxygen flow rate due to COVID-19 in those on chronic oxygen therapy due to underlying non-COVID-19 related comorbidity. * Have peripheral capillary oxygen saturation (SpO2) less than or equal to (≤) 90 percent on room air or arterial partial pressure of oxygen/fraction of inspired oxygen (PaO2/FiO2) less than (\<) 300, respiratory rate greater than or equal to (≥) 30 per minute, heart rate ≥125 per minute. * Have body weight \<40 kilograms. * Require mechanical ventilation or anticipated impending need for mechanical ventilation. * Have known allergies to any of the components used in the formulation of the interventions. * Suspected or proven serious, active bacterial, fungal, viral, or other infection (besides COVID-19) that in the opinion of the investigator could constitute a risk when taking intervention. * Have any comorbidity requiring surgery within \<7 days, or that is considered life-threatening within 29 days. * Have any serious concomitant systemic disease, condition, or disorder that, in the opinion of the investigator, should preclude participation in this study. * Have a history of a positive SARS-CoV-2 serology test. * Have a history of a positive SARS-CoV-2 test prior to the one serving as eligibility for this study. * Have received an investigational intervention for SARS-CoV-2 prophylaxis within 30 days before dosing. * Have received treatment with a SARS-CoV-2-specific monoclonal antibody, remdesivir, or other treatment for COVID-19. * Have received convalescent COVID-19 plasma treatment. * Have participated in a previous SARS-CoV-2 vaccine study. * Have participated, within the last 30 days, in a clinical study involving an investigational intervention. If the previous investigational intervention has a long half-life, 5 half-lives or 30 days, whichever is longer, should have passed. * Are concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study. * Are breast-feeding.