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

Varicella in Estonia: 2026 cases and outbreak reports

Reported varicella surveillance for Estonia (EST) — ▼ Declining · 2025 — latest record 2026-06-07

What the 2026 data shows

No varicella case count has been reported for Estonia so far in 2026. The full year 2025 closed at 4,131 cases. 2025 closed 48% below the 2023–2024 average, which is why the trend reads “Declining”.

ENCLAI has logged 86 surveillance records for varicella in Estonia in 2026, with the most detailed reporting in Jun 2026 (86 records). 1 distinct surveillance sources reported this pair in 2026.

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Surveillance summary

2026 cases (YTD)
not reported
2025 cases (full year)
4,131
Baseline avg (3yr)
N/A
Trend (2025)
▼ Declining · 2025
-48% vs 2023–2024 average

Reported cases by year, Estonia

YearReported casesShare of worldwide reports
2023 10,815 2.4%
2024 5,116 1.2%
2025 4,131 1.1%
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 varicella 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
Jun 2026861

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 Estonia with the most varicella records this year:

AreaRecords
Harjumaa5
Hiiumaa5
Ida-Virumaa5
Järvamaa5
Jõgevamaa5

Varicella in other countries, 2026

Country2026 casesTrend
Poland 73,825 ▼ Declining · 2025
South Korea 32,970 ≈ Stable · 2025
Colombia 23,421
Sri Lanka 8,668
Mongolia 6,839 ≈ Stable · 2025

Other diseases reported in Estonia, 2026

Disease2026 casesTrend
Seasonal influenza 3,221 ▲ Rising · 2025
Respiratory syncytial virus infection 2,533 ▲ Rising · 2025
COVID-19 2,083 ▼ Declining · 2025
Measles 4 ▲ Rising · 2025

Questions about this page

How many varicella cases has Estonia reported in 2026?
No varicella case count has been reported for Estonia so far in 2026. The full year 2025 closed at 4,131 cases. 2025 closed 48% below the 2023–2024 average, which is why the trend reads “Declining”.
Is varicella rising or falling in Estonia?
ENCLAI's trend reading for varicella in Estonia is “Declining · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Estonia 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 varicella records for Estonia dated from 2015. How we verify and update data: methodology & Trust Center · understanding case counts.

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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.