Open Outbreak

Should I be worried about Hepatitis A outbreak, Costa Rica?

Mis à jour · Gradué à partir des évaluations officielles ; rien ici n'est un avis médical.

Épidémie d'hépatite A, Costa Rica · modéré

If you are in the affected area aucune évaluation
No agency has published an assessment for people in the affected area in San José province. The official notice available here is CDC's 18 September 2026 Level 1 travel notice for visitors to Costa Rica.
If you are elsewhere in the same country or region aucune évaluation
No agency has published an assessment for people elsewhere in Costa Rica. The official notice available here is CDC's 18 September 2026 Level 1 travel notice for visitors to Costa Rica.
If you are travelling there soon faible
US CDC issued a Level 1 travel notice for hepatitis A in Costa Rica on 18 September 2026 and said most cases had been reported in San José province. Selon US CDC
If you are elsewhere in the world aucune évaluation
No agency has published an assessment for people elsewhere in the world. The official notice available here is CDC's 18 September 2026 Level 1 travel notice for travelers to Costa Rica.

Ce qui se passe

Costa Rica is monitoring a hepatitis A outbreak in 2026, with the clearest reporting placing most cases in San José province. A 21 September 2026 media report said Costa Rica Ministry of Health surveillance had counted 772 confirmed cases nationwide through epidemiological week 32, including 562 in San José province, 61 in Cartago, and 60 in Alajuela, but that ministry bulletin was not directly retrieved. The latest figures available here are media reports of 1537 confirmed cases and 23 suspected cases, unverified. The same media report said officials had not found evidence that one common water source explained the wider increase, although one capital-area cluster reportedly involved water-system contamination. CDC posted a Level 1 travel notice on 18 September 2026 for hepatitis A in Costa Rica, and no quarantines, closures, or travel restrictions were reported in the retrieved documents.

Qui est touché et comment cela se transmet

Hepatitis A is a liver infection caused by hepatitis A virus, and WHO says it is usually acute and self-limiting rather than a lifelong infection. The virus spreads mainly by the fecal-oral route, including close personal contact, contaminated food or water, dirty hands, and some sexual contact. Risk is higher for unvaccinated people in close-contact settings, and WHO notes travellers to areas of high endemicity among the groups at risk. Vaccines are available, and WHO says they should be used for prevention and outbreak control.

Ce que recommandent les autorités

Ce que nous surveillons

Mises à jour

Sources