Source-backedEdition SpecificHeightened editorial care

World Immunization Week

WHO’s formal campaign is World Immunization Week, held 24–30 April; WHO lists the 2026 edition for 24–30 April 2026. The site’s “World Immunization Day” title is therefore a search alias, not WHO’s formal observance name.

Date / rule24–30 April 2026
ScopeWorld Health Organization / global immunization campaign
VerificationOfficial Agency Alias Correction Current Verified
PortabilityEdition Specific
Evidence statusSource-backed
Last authority check2026-09-09
Target-year policyRefresh Edition
Next occurrenceNot projected automatically

This record requires a current target-year source or is intentionally historical.

Authority summary

What is World Immunization Week?

WHO’s formal campaign is World Immunization Week, held 24–30 April; WHO lists the 2026 edition for 24–30 April 2026. The site’s “World Immunization Day” title is therefore a search alias, not WHO’s formal observance name.

Date and recurrence

24–30 April 2026

The stored date is verified for a specific edition only. It is not projected into another year without a fresh authoritative source.

Scope and status

The verified scope stored for this record is World Health Organization / global immunization campaign. The site preserves that boundary and does not infer broader government, global or public-holiday status from the observance name alone.

Also known as

World Immunization Day

Classification

Topic and context

Health, Wellness & Awareness →
Accuracy controls

What this page does not assume

  • Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
  • Do not treat the title alone as proof of government recognition or public-holiday status.
  • Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
  • Refresh the target year before publishing a new date when the record is not safely portable.
  • Health Information Not Medical Advice.
Provenance

Sources

Source policy →
  1. WHO — World Immunization Week 2026Official Health Agency
  2. WHO — World Immunization WeekOfficial Health Agency
Reader questions

Frequently asked questions

When is World Immunization Week?

24–30 April 2026 The stored recurrence guidance is: Refresh the authoritative target-year edition/schedule; current stored evidence: 24–30 April 2026.

Does World Immunization Week fall on the same date every year?

No. The stored date is edition-specific and must be refreshed for another year.

Is World Immunization Week an official public holiday?

The authority record verifies it within this scope: World Health Organization / global immunization campaign. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when the supporting authority record explicitly does so.

Who established or recognizes World Immunization Week?

The stored designation basis is: WHO’s formal campaign is World Immunization Week, held 24–30 April; WHO lists the 2026 edition for 24–30 April 2026. The site’s “World Immunization Day” title is therefore a search alias, not WHO’s formal observance name.. Supporting provenance includes WHO — World Immunization Week 2026. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is World Immunization Week international or country-specific?

The record has international or global institutional scope: World Health Organization / global immunization campaign. That does not mean every country treats the date as a public holiday or observes it in the same way.

How is this page verified?

The factual layer is source-backed and keeps its date rule, scope, provenance and editorial guardrails attached to the authority record. This record was checked on 2026-09-09.

Explore further

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Related records are selected from shared ontology signals. When a reviewed distinction exists, it is labeled separately so “related” is not mistaken for “the same observance.”