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Decision-support · not a medical record

Immunization Navigator

Helping navigate Ontario's routine immunization catch-up schedule.

Built from Ontario MOH Publicly Funded Immunization Schedules, June 2022 + Catch-Up Guidance, Jan 2024
The clinical forecast results (the dose cards and their explanations) are provided in English only. Switching this page's language, or using your browser's automatic translation, translates the interface text but is not a clinically reviewed translation of the forecast — machine translation can be inaccurate for medical terms. When in doubt, confirm with a provider or interpreter.
Sources and methodology

This tool uses the Ontario Publicly Funded Immunization Schedules, June 2022, as its main framework. Later guidance is applied only as a targeted update to the vaccines, products, effective dates, or programs it changes.

Primary framework

  • Ontario Ministry of Health, Publicly Funded Immunization Schedules for Ontario, June 2022.
  • Ontario Ministry of Health, Guidance for Routine and Catch-Up Immunization Services, version 5, January 23, 2024.

Targeted Ontario updates

  • Ontario Ministry of Health, Recommendations for Children Previously Immunized with Oral Polio Vaccine: Questions and Answers for Immunizers, April 2024.
  • Ontario Ministry of Health pediatric and adult pneumococcal program guidance, 2025.
  • Ontario Ministry of Health, Respiratory Syncytial Virus Prevention Programs, 2025 to 2026 season.
  • Ontario Ministry of Health, Getting the HPV Vaccine, updated March 4, 2026.
  • Ontario Ministry of Health, Immunizations for Adults, updated September 24, 2025.
  • Ontario Ministry of Health, Shingles Vaccine, updated August 22, 2025.
  • Ontario Universal Influenza Immunization Program guidance for the active influenza season.

Ontario technical guidance and recommendations

  • Public Health Ontario and the Ontario Immunization Advisory Committee, Recommendations on the Use of Quadrivalent Meningococcal Conjugate Vaccines in Ontario, July 2026.
  • Public Health Ontario, Hepatitis B Vaccines and Schedules: Frequently Asked Questions, August 2022.
  • Public Health Ontario immunization and vaccine-specific technical resources, where they clarify Ontario practice or support an implemented Ontario update.

Toronto-specific guidance

  • Toronto Public Health immunization guidance for health professionals and school immunization programs.
  • Toronto Public Health guidance on meningococcal vaccination, hepatitis B, RSV, vaccine supply, and local implementation.
  • Toronto recommendations are applied only when the output is clearly identified as Toronto-specific.

Supplementary national guidance

The Canadian Immunization Guide is used only where Ontario incorporates it, refers to it, or does not fully define a clinical detail such as dose validity or a minimum interval. It does not replace Ontario policy or determine Ontario public funding.

Clinical source review: July 2026. This tool supports clinical decision-making but does not replace individual assessment of medical conditions, pregnancy, immune status, occupation, travel, or exposure.
What this tool does: Enter a date of birth and vaccination history to see which routine Ontario vaccine doses may be due next. The forecast is based only on age and the doses entered. It does not consider medical conditions, occupation, travel, or other risk factors.

What this tool does not do: It does not assess eligibility for vaccines offered to people with specific medical conditions or other higher-risk factors. Only routine vaccines and schedules available to the general population are included.

For high-risk eligibility or recommendations outside Ontario's routine schedule, check with your local public health unit or healthcare provider.

This tool is meant to support clinical judgment, not replace it.
Vaccines given outside Canada: Results are only accurate if the doses entered are valid and equivalent to products used in Ontario. The tool cannot verify this on its own.

Under Ontario Ministry of Health guidance, Oral Polio Vaccine (OPV) given on or after April 1, 2016 is assumed to be bivalent. It does not protect against poliovirus type 2 and should not be counted as a valid dose. OPV given before April 1, 2016 is assumed to be trivalent and may be counted.

Other vaccines given outside Canada, especially unfamiliar products, should be confirmed as equivalent to an Ontario vaccine before being entered.

1Date of birth

2Doses already received

due now / overdue upcoming, not yet due series complete not yet applicable
Going to school in Toronto and need catch-up vaccines? Toronto Public Health runs student immunization clinics — book an appointment here.
Based on the Ontario Publicly Funded Immunization Schedules, June 2022, with targeted modifiers from later Ontario, PHO, OIAC, and Toronto Public Health guidance. View sources and methodology. Only age and entered doses are modelled; high-risk eligibility is not assessed. A delayed series is continued, not restarted. Display type: Movement, by NM type & Design Indaba 2019.

About this tool

Immunization Navigator is one of the healthcare navigation tools developed by Ya Estoy Aquí Healthcare Collective.

It helps people work through Ontario's routine immunization catch-up schedule using publicly available Ministry of Health guidance.

It supports decision-making alongside current provincial guidance and professional clinical judgement.

Immunization Navigator and its original design and implementation were developed by Ya Estoy Aquí Healthcare Collective.