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[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "RBD-based protein subunit vaccine (ZF2001) against COVID-19;recombinant Ad5 vectored COVID-19 vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "RBD-based protein subunit vaccine (ZF2001) against COVID-19;recombinant Ad5 vectored COVID-19 vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "recombinant Ad5 vectored COVID-19 vaccine;trivalent split influenza vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "recombinant Ad5 vectored COVID-19 vaccine;trivalent split influenza vaccine", "treatment_type": "Biological;Biological", "pharmacological_treatment": "Non pharmacological treatment"}]

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