[{"arm_notes": "", "treatment_id": null, "treatment_name": "TODO PreventionIntervention group: All people receiving health care services from PIHO residing in Fars, Hormozgan, and Ahwaz centers. The intervention group individuals will receive 4 drops of OPV vaccine (provided by Razi Institute). We will follow the age-adjusted incidence rate of COVID-19 in the study group for at least 2 months after the vaccination.", "treatment_type": "TODO", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "1", "treatment_id": 1007, "treatment_name": "Polio vaccine", "treatment_type": "Non covid vaccine", "pharmacological_treatment": "Non covid vaccine"}]