[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "Blood test to describe the humoral and cellular response to vaccination BNT162b2 in the elderly", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Blood test to describe the humoral and cellular response to vaccination BNT162b2 in the elderly", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "Elderly", "treatment_id": 222, "treatment_name": "Bnt162b2", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "Younger adults (priority caregivers)", "treatment_id": 222, "treatment_name": "Bnt162b2", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}]