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

Whooping cough (pertussis) in Chile: 2026 cases and outbreak reports

Reported whooping cough (pertussis) surveillance for Chile (CHL) — — latest record 2026-10-13

What the 2026 data shows

No whooping cough (pertussis) case count has been reported for Chile so far in 2026. No 2025 figure has been reported.

ENCLAI has logged 248 surveillance records for whooping cough (pertussis) in Chile in 2026, with the most detailed reporting in May 2026 (229 records). 18 of those arrived in the last 30 days. 2 distinct surveillance sources reported this pair in 2026.

Key facts: Whooping cough (pertussis)

Transmission
Airborne droplets
Coughs and sneezes; contagious from symptom onset and for ≥ 2 weeks after coughing begins (antibiotics shorten this).CDC 2026
Incubation
7–10 days
Then a catarrhal stage like a cold, the cough worsening over 1–2 weeks before the paroxysms (Prescott: 7–14 days).Oxford Hb 2025 · Prescott 7e
Vaccine
DTaP · Tdap · DTP3 85%
WHO: first dose from 6 weeks, then doses 4–8 weeks apart; 85% of infants got three DTP doses in 2025. Neither infection nor vaccine gives lifelong protection.WHO 2026 · CDC 2026

Cited reference facts about the disease, not derived from the surveillance counts on this page. Full set on the Whooping cough (pertussis) page.

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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, Chile

YearReported casesShare of worldwide reports
2023 410 3.2%
2024 13 0.0%
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 whooping cough (pertussis) 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
Apr 202611
May 20262291
Oct 2026181

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. 18 records were logged in the last 30 days.

Sub-national reporting, 2026

Areas within Chile with the most whooping cough (pertussis) records this year:

AreaRecords
Biobio18
Coquimbo Region18
Santiago Metropolitan18
Valparaiso18
Los Lagos Region17

Whooping cough (pertussis) in other countries, 2026

Country2026 casesTrend
Australia 9,883
United States 9,616
Colombia 4,087
Poland 2,375 ▼ Declining · 2025
China 2,273

Other diseases reported in Chile, 2026

Disease2026 casesTrend
Measles 1

Questions about this page

How many whooping cough (pertussis) cases has Chile reported in 2026?
No whooping cough (pertussis) case count has been reported for Chile so far in 2026. No 2025 figure has been reported.

About this data

Figures are reported case counts as published by the originating health authorities, compiled by ENCLAI from 444 verified surveillance sources. Chile 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 whooping cough (pertussis) records for Chile 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.