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

Haemophilus influenzae disease in Brazil: 2026 cases and outbreak reports

Reported haemophilus influenzae disease surveillance for Brazil (BRA) — ≈ Stable · 2025 — latest record 2026-10-13

What the 2026 data shows

As of 24 August 2026, Brazil has reported 162 haemophilus influenzae disease cases in 2026, compiled from figures published by SINAN. The full year 2025 closed at 203 cases. 2025 closed 11% above the 2023–2024 average, which is why the trend reads “≈ Stable”.

Of the 12 countries reporting haemophilus influenzae disease to ENCLAI in 2026, Brazil accounts for 3.0% of reported cases and ranks 4 by case count.

ENCLAI has logged 2,988 surveillance records for haemophilus influenzae disease in Brazil in 2026, with the most detailed reporting in Oct 2026 (2,988 records). 2,988 of those arrived in the last 30 days; the case counts run to 2026-08-24. 1 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: SINAN — Sistema de Informação de Agravos de Notificação

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Surveillance summary

2026 cases (YTD)
162
2025 cases (full year)
203
Baseline avg (3yr)
N/A
Trend (2025)
≈ Stable · 2025
+11% vs 2023–2024 average

Reported cases by year, Brazil

YearReported casesShare of worldwide reports
2023 188 18.1%
2024 179 2.7%
2025 203 2.9%
2026 (year to date) 162 3.0%

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 haemophilus influenzae disease 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 20262,9881

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. 2,988 records were logged in the last 30 days.

Sub-national reporting, 2026

Areas within Brazil with the most haemophilus influenzae disease records this year:

AreaRecords
São Paulo583
Minas Gerais230
Rio de Janeiro190
Paraná128
Bahia112

Haemophilus influenzae disease in other countries, 2026

Country2026 casesTrend
United States 4,273
Spain 488 ▼ Declining · 2025
Poland 182 ▼ Declining · 2025
Germany 95
Finland 71

Other diseases reported in Brazil, 2026

Disease2026 casesTrend
COVID-19 441,893
Dengue fever 385,610 ▼ Declining · 2025
Chikungunya fever 59,714 ▼ Declining · 2025
Leprosy 18,831 ≈ Stable · 2025
Viral meningitis (aseptic) 2,977 ▼ Declining · 2025

Questions about this page

How many haemophilus influenzae disease cases has Brazil reported in 2026?
As of 24 August 2026, Brazil has reported 162 haemophilus influenzae disease cases in 2026, compiled from figures published by SINAN. The full year 2025 closed at 203 cases. 2025 closed 11% above the 2023–2024 average, which is why the trend reads “≈ Stable”.
Is haemophilus influenzae disease rising or falling in Brazil?
ENCLAI's trend reading for haemophilus influenzae disease in Brazil 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 Brazil publish haemophilus influenzae disease surveillance data?
The counts on this page were published by SINAN — Sistema de Informação de Agravos de Notificação. 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. Brazil 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 haemophilus influenzae disease records for Brazil dated from 2007. 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.