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

Syphilis in Mongolia: 2026 cases and outbreak reports

Reported syphilis surveillance for Mongolia (MNG) — ≈ Stable · 2025 — latest record 2026-10-13

What the 2026 data shows

As of 30 September 2026, Mongolia has reported 2,977 syphilis cases in 2026, as published by Mongolia National Statistics Office. The full year 2025 closed at 4,366 cases. 2025 closed 8% below the 2023–2024 average, which is why the trend reads “≈ Stable”.

Of the 21 countries reporting syphilis to ENCLAI in 2026, Mongolia accounts for 1.4% of reported cases and ranks 7 by case count.

ENCLAI has logged 129 surveillance records for syphilis in Mongolia in 2026, with the most detailed reporting in Oct 2026 (129 records). 1 of those arrived in the last 30 days; the case counts run to 2026-09-30. 1 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: Mongolia National Statistics Office — cases of communicable diseases by month

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Surveillance summary

2026 cases (YTD)
2,977
2025 cases (full year)
4,366
Baseline avg (3yr)
N/A
Trend (2025)
≈ Stable · 2025
-8% vs 2023–2024 average

Reported cases by year, Mongolia

YearReported casesShare of worldwide reports
2023 4,206 1.5%
2024 5,247 1.6%
2025 4,366 0.9%
2026 (year to date) 2,977 1.4%

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 syphilis 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
Oct 20261291

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.

Syphilis in other countries, 2026

Country2026 casesTrend
China 161,768
United States 18,248
Colombia 8,776
Australia 6,836
Uruguay 6,349

Other diseases reported in Mongolia, 2026

Disease2026 casesTrend
Hand, foot and mouth disease 10,049 ▼ Declining · 2025
Varicella 6,839 ≈ Stable · 2025
Gonococcal infection 2,253 ≈ Stable · 2025
Tuberculosis 1,421 ≈ Stable · 2025
Shigellosis 1,047 ▼ Declining · 2025

Questions about this page

How many syphilis cases has Mongolia reported in 2026?
As of 30 September 2026, Mongolia has reported 2,977 syphilis cases in 2026, as published by Mongolia National Statistics Office. The full year 2025 closed at 4,366 cases. 2025 closed 8% below the 2023–2024 average, which is why the trend reads “≈ Stable”.
Is syphilis rising or falling in Mongolia?
ENCLAI's trend reading for syphilis in Mongolia is “≈ Stable · 2025”: the latest complete year is compared with the earlier baseline from the reported counts; the current year is not judged until it closes.
Where does Mongolia publish syphilis surveillance data?
The counts on this page were published by Mongolia National Statistics Office — cases of communicable diseases by month. 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. Mongolia 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 syphilis records for Mongolia 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.