[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "MVC-COV1901(3 Months)", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "MVC-COV1901(6 Months)", "treatment_type": "Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

[{"arm_notes": "1, day 0; had received 2 doses of ChAdOx1-nCov-19 3 months ago", "treatment_id": 840, "treatment_name": "Mvc-cov1901", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}, {"arm_notes": "1, day 85; had received 2 doses of ChAdOx1-nCov-19 6 months ago", "treatment_id": 840, "treatment_name": "Mvc-cov1901", "treatment_type": "Protein subunit", "pharmacological_treatment": "Vaccine"}]