{"id": 1206226, "name": "Countries by vaccine policy (Mandatory)", "unit": "", "createdAt": "2026-03-05T10:16:19.000Z", "updatedAt": "2026-03-05T10:16:19.000Z", "coverage": "", "timespan": "2019-2019", "datasetId": 7418, "columnOrder": 0, "shortName": "countries_by_vaccine_policy__mandatory", "catalogPath": "grapher/health/2021/childhood_vaccination_policies__vanderslott_et_al__2021/childhood_vaccination_policies__vanderslott_et_al__2021#countries_by_vaccine_policy__mandatory", "type": "int", "datasetName": "Childhood vaccination policies (Vanderslott et al. 2021)", "datasetVersion": "2021", "nonRedistributable": false, "display": {"name": "Mandatory", "numDecimalPlaces": 0}, "schemaVersion": 1, "presentation": {}, "source": {"id": 31120, "name": "Vanderslott & Marks (2021). Charting mandatory childhood vaccination policies worldwide. Vaccine.", "dataPublishedBy": "Vanderslott, S., & Marks, T. (2021). Charting mandatory vaccination policies worldwide. <i>Vaccine</i>.", "dataPublisherSource": "", "link": "https://www.sciencedirect.com/science/article/pii/S0264410X21005478", "retrievedDate": "2026-03-05", "additionalInfo": "This is a live dataset that relies on crowdsourcing to note policy changes. If you are aware of any new policies or policy changes for any country please do get in touch at: samantha.vanderslott@paediatrics.ox.ac.uk."}, "dimensions": {"years": {"values": [{"id": 2019}]}, "entities": {"values": [{"id": 273, "name": "Africa", "code": "OWID_AFR"}, {"id": 290, "name": "Americas", "code": null}, {"id": 488, "name": "Eastern Mediterranean", "code": null}, {"id": 276, "name": "Europe", "code": "OWID_EUR"}, {"id": 196139, "name": "No WHO Region", "code": null}, {"id": 487, "name": "South-East Asia", "code": null}, {"id": 489, "name": "Western Pacific", "code": null}, {"id": 355, "name": "World", "code": "OWID_WRL"}]}}, "origins": []}