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

Varicella in Canada: 2026 cases and outbreak reports

Reported varicella surveillance for Canada (CAN) — — latest record 2026-10-14

What the 2026 data shows

No varicella case count has been reported for Canada so far in 2026. No 2025 figure has been reported.

ENCLAI has logged 137 surveillance records for varicella in Canada in 2026, with the most detailed reporting in Jul 2026 (119 records). 1 of those arrived in the last 30 days; the case counts run to 2026-08-01. 4 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: City of Toronto — Communicable Disease Surveillance (Monthly)

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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, Canada

YearReported casesShare of worldwide reports
2023 629 0.1%
2024 830 0.2%
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 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
May 202621
Jun 2026134
Jul 20261191
Aug 202611
Sep 202611
Oct 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. 1 records were logged in the last 30 days.

Sub-national reporting, 2026

Areas within Canada with the most varicella records this year:

AreaRecords
Toronto126
Alberta5
Ontario5
British Columbia1

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 Canada, 2026

Disease2026 casesTrend
COVID-19 32,467
Seasonal influenza 30,717
Respiratory syncytial virus infection 22,576
Measles 1,096 ▲ Rising · 2025

Questions about this page

How many varicella cases has Canada reported in 2026?
No varicella case count has been reported for Canada so far in 2026. No 2025 figure has been reported.
Where does Canada publish varicella surveillance data?
The counts on this page were published by City of Toronto — Communicable Disease Surveillance (Monthly). 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. Canada 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 Canada dated from 2016. 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.