Compiled by the ENCLAI research team following a documented methodology · Editorial oversight: Dr Natalya Mathur, Founder · Data last updated: (UTC)

Yersiniosis in Bulgaria: 2026 cases and outbreak reports

Reported yersiniosis surveillance for Bulgaria (BGR) — — latest record 2026-07-04

What the 2026 data shows

No yersiniosis case count has been reported for Bulgaria so far in 2026. No 2025 figure has been reported.

ENCLAI has logged 30 surveillance records for yersiniosis in Bulgaria in 2026, with the most detailed reporting in May 2026 (29 records); the case counts run to 2026-05-17. 2 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: Sofia Capital RZI — Weekly Operational Report · RZI Varna — Weekly Bulletin (Varna oblast)

The daily disease brief

One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.

Double opt-in — we send a confirmation link and nothing else until you click it. One-click unsubscribe on every email. See our privacy notice.

Surveillance summary

2026 cases (YTD)
not reported
2025 cases (full year)
not reported
Baseline avg (3yr)
N/A
Trend (2025)
—
No 2025 figure

Reported cases by year, Bulgaria

YearReported casesShare of worldwide reports
2023 15 0.1%
2024 not reported —
2025 not reported —
2026 (year to date) not reported —

Reporting bounds and case definitions vary; historical baselines are a separate comparison measure. Worldwide share compares this country's reported figure with the sum of all countries reporting yersiniosis to ENCLAI for that year. "Incomplete year" means our sources cover less than ten months of that year, so no full-year figure is shown; "outbreak total to date" is a running total since an outbreak began, not a count for one year.

Surveillance records logged in 2026

MonthRecordsReporting sources
May 2026291
Jul 202611

A record is one dated surveillance publication or one row of an official table; a month with many records is a month with detailed reporting, not necessarily more cases.

Sub-national reporting, 2026

Areas within Bulgaria with the most yersiniosis records this year:

AreaRecords
Sofia-Capital29

Yersiniosis in other countries, 2026

Country2026 casesTrend
Spain 969 ≈ Stable · 2025
Finland 715 ▲ Rising · 2025
New Zealand 469 ≈ Stable · 2025
Poland 411 ≈ Stable · 2025
Germany 379

Other diseases reported in Bulgaria, 2026

Disease2026 casesTrend
Seasonal influenza 650 ▲ Rising · 2025
Measles 501 ▼ Declining · 2025
COVID-19 259 ▼ Declining · 2025
Respiratory syncytial virus infection 93 ▲ Rising · 2025

Questions about this page

How many yersiniosis cases has Bulgaria reported in 2026?
No yersiniosis case count has been reported for Bulgaria so far in 2026. No 2025 figure has been reported.
Where does Bulgaria publish yersiniosis surveillance data?
The counts on this page were published by Sofia Capital RZI — Weekly Operational Report and RZI Varna — Weekly Bulletin (Varna oblast). ENCLAI compiles and normalises them and is not affiliated with these authorities.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Bulgaria figures reflect the reporting available to ENCLAI; reporting periods and case definitions differ between sources, and a missing report does not establish zero cases. ENCLAI holds yersiniosis records for Bulgaria dated from 2015. How we verify and update data: methodology & Trust Center · understanding case counts.

Track yersiniosis in Bulgaria live — alerts, exports and sub-national drill-down: start a 7-day free trial or request a demo.

The daily disease brief

One email a day: what changed in official disease reporting worldwide, with the source named for every number. Reported facts only — no forecasts and no interpretation.

Double opt-in — we send a confirmation link and nothing else until you click it. One-click unsubscribe on every email. See our privacy notice.