{
  "country_code": "us",
  "country_name": "United States",
  "region": "North America",
  "authority": "CDC / ACIP",
  "source_url": "https://www.cdc.gov/vaccines/schedules/hcp/imz/child-adolescent.html",
  "last_updated": "2024-06-01",
  "source": "CDC Child & Adolescent Immunization Schedule (ACIP)",
  "notes": "Seed data compiled from the cited national immunization authority. Re-verify against the official source before relying on it for clinical decisions.",
  "schedules": {
    "hepatitis-b": [
      {
        "dose": "Dose 1",
        "age_display": "Birth",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "1-2 months",
        "mandatory": true
      },
      {
        "dose": "Dose 3",
        "age_display": "6-18 months",
        "mandatory": true
      }
    ],
    "dtap": [
      {
        "dose": "Dose 1",
        "age_display": "2 months",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "4 months",
        "mandatory": true
      },
      {
        "dose": "Dose 3",
        "age_display": "6 months",
        "mandatory": true
      },
      {
        "dose": "Dose 4",
        "age_display": "15-18 months",
        "mandatory": true
      },
      {
        "dose": "Dose 5",
        "age_display": "4-6 years",
        "mandatory": true
      }
    ],
    "polio": [
      {
        "dose": "Dose 1",
        "age_display": "2 months",
        "mandatory": true,
        "product_type": "IPV"
      },
      {
        "dose": "Dose 2",
        "age_display": "4 months",
        "mandatory": true,
        "product_type": "IPV"
      },
      {
        "dose": "Dose 3",
        "age_display": "6-18 months",
        "mandatory": true,
        "product_type": "IPV"
      },
      {
        "dose": "Dose 4",
        "age_display": "4-6 years",
        "mandatory": true,
        "product_type": "IPV"
      }
    ],
    "hib": [
      {
        "dose": "Dose 1",
        "age_display": "2 months",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "4 months",
        "mandatory": true
      },
      {
        "dose": "Dose 3",
        "age_display": "6 months",
        "mandatory": true
      },
      {
        "dose": "Dose 4",
        "age_display": "12-15 months",
        "mandatory": true
      }
    ],
    "pcv": [
      {
        "dose": "Dose 1",
        "age_display": "2 months",
        "mandatory": true,
        "product_type": "PCV15 or PCV20"
      },
      {
        "dose": "Dose 2",
        "age_display": "4 months",
        "mandatory": true,
        "product_type": "PCV15 or PCV20"
      },
      {
        "dose": "Dose 3",
        "age_display": "6 months",
        "mandatory": true,
        "product_type": "PCV15 or PCV20"
      },
      {
        "dose": "Dose 4",
        "age_display": "12-15 months",
        "mandatory": true,
        "product_type": "PCV15 or PCV20"
      }
    ],
    "rotavirus": [
      {
        "dose": "Dose 1",
        "age_display": "2 months",
        "mandatory": true,
        "product_type": "RV5 or RV1"
      },
      {
        "dose": "Dose 2",
        "age_display": "4 months",
        "mandatory": true,
        "product_type": "RV5 or RV1"
      },
      {
        "dose": "Dose 3",
        "age_display": "6 months",
        "mandatory": true,
        "product_type": "RV5 or RV1"
      }
    ],
    "mmr": [
      {
        "dose": "Dose 1",
        "age_display": "12-15 months",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "4-6 years",
        "mandatory": true
      }
    ],
    "varicella": [
      {
        "dose": "Dose 1",
        "age_display": "12-15 months",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "4-6 years",
        "mandatory": true
      }
    ],
    "hepatitis-a": [
      {
        "dose": "Dose 1",
        "age_display": "12-23 months",
        "mandatory": true
      },
      {
        "dose": "Dose 2",
        "age_display": "6-18 months after dose 1",
        "mandatory": true
      }
    ],
    "meningococcal": [
      {
        "dose": "Dose 1",
        "age_display": "11-12 years",
        "mandatory": true,
        "product_type": "MenACWY"
      },
      {
        "dose": "Booster",
        "age_display": "16 years",
        "mandatory": true,
        "product_type": "MenACWY"
      }
    ],
    "hpv": [
      {
        "dose": "Dose 1",
        "age_display": "11-12 years",
        "mandatory": true,
        "notes": "2-dose series if started before 15th birthday"
      },
      {
        "dose": "Dose 2",
        "age_display": "6-12 months after dose 1",
        "mandatory": true,
        "notes": "2-dose series if started before 15th birthday"
      }
    ],
    "influenza": [
      {
        "dose": "Annual",
        "age_display": "6 months and older, every season",
        "mandatory": true
      }
    ],
    "covid": [
      {
        "dose": "Current dose",
        "age_display": "6 months and older",
        "mandatory": false,
        "notes": "Per current FDA/CDC recommendation"
      }
    ]
  }
}