[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "mRNA-1273;Placebo", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "2", "treatment_id": 824, "treatment_name": "Mrna-1273", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "2", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "mRNA-1273", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]