[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "BNT162b2", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "BNT162b2", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "CoronaVac", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "CoronaVac", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "after two doses of BNT162b2 at least 6 months earlier", "treatment_id": 222, "treatment_name": "Bnt162b2", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "after two doses of Coronavac at least 6 months earlier", "treatment_id": 222, "treatment_name": "Bnt162b2", "treatment_type": "Rna based vaccine", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "after two doses of BNT162b2 at least 6 months earlier", "treatment_id": 327, "treatment_name": "Coronavac", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "after two doses of Coronavac at least 6 months earlier", "treatment_id": 327, "treatment_name": "Coronavac", "treatment_type": "Inactivated virus", "pharmacological_treatment": "Vaccine"}]