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Hepatitis A outbreak reported in Costa Rica’s San José Province

CDC reports a hepatitis A outbreak in Costa Rica, with most cases in San José Province. The Level 1 designation supports inclusion as a lower-severity localized signal rather than an elevated national emergency.

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Location
San José Province, Costa Rica
Province-level representative point
First seen
September 18, 2026
Last verified
September 22, 2026

Markers use representative points at the country or regional level, not exact incident locations. Placement indicates the affected area, not a precise site.

What changed since the prior scan

Newly added; the September 18 notice was omitted from the prior scan.

History

  1. First seen (source)

    First reported by the primary source. External event date, not a TiPH publication date.

  2. Added to the desk

    Added to the Global Signal Desk in the September 22 scan.

Primary sources

Who works on this?

Events like this are answered by teams across public health. These are real profession types that respond to this kind of event — not people assigned to it.

  • Epidemiologist

    Tracks how and where disease spreads and estimates risk to populations.

  • Immunization program manager

    Plans and runs vaccination campaigns and monitors coverage.

  • Public health nurse

    Delivers frontline prevention, screening, and community care.

  • Vaccine cold-chain logistician

    Keeps vaccines viable from manufacture to the point of care.

  • Health communication specialist

    Turns technical findings into clear, trustworthy public guidance.

  • Foodborne-disease epidemiologist

    Investigates contaminated-food and waterborne illness clusters.

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Corrections & updates

This record is reverified against its primary sources on a twice-daily scan. When the evidence changes, the record changes and the change is logged in the review record — including signals we remove. This is situational awareness, not clinical or travel advice.

Review recordResolved archiveHow the desk decides

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