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

Pneumococcal disease in Guam: 2026 cases and outbreak reports

Reported pneumococcal disease surveillance for Guam (GUM) — ≈ Stable · 2025 — latest record 2026-10-07

What the 2026 data shows

No pneumococcal disease case count has been reported for Guam so far in 2026. The full year 2025 closed at 1 cases. 2025 closed 0% below 2023, which is why the trend reads “≈ Stable”.

ENCLAI has logged 5 surveillance records for pneumococcal disease in Guam in 2026, with the most detailed reporting in Oct 2026 (3 records); the case counts run to 2026-01-04. 2 distinct surveillance sources reported this pair in 2026.

Reporting authorities for these counts: CDC NNDSS Weekly Notifiable Diseases (State-Level)

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Surveillance summary

2026 cases (YTD)
not reported
2025 cases (full year)
1
Baseline avg (3yr)
N/A
Trend (2025)
≈ Stable · 2025
+0% vs 2023

Reported cases by year, Guam

YearReported casesShare of worldwide reports
2023 1 0.0%
2024 not reported —
2025 1 0.0%
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 pneumococcal 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
Jan 202621
Oct 202631

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 Guam with the most pneumococcal disease records this year:

AreaRecords
Guam2

Pneumococcal disease in other countries, 2026

Country2026 casesTrend
United States 10,685
Spain 2,854 ▼ Declining · 2025
Poland 2,801 ≈ Stable · 2025
Australia 2,139
Brazil 1,023 ≈ Stable · 2025

Other diseases reported in Guam, 2026

Disease2026 casesTrend
Seasonal influenza 625 ▲ Rising · 2025
Chlamydia infection 610 ≈ Stable · 2025
COVID-19 354 ▼ Declining · 2025
Gonococcal infection 246 ▲ Rising · 2025
Syphilis 103 ▲ Rising · 2025

Questions about this page

How many pneumococcal disease cases has Guam reported in 2026?
No pneumococcal disease case count has been reported for Guam so far in 2026. The full year 2025 closed at 1 cases. 2025 closed 0% below 2023, which is why the trend reads “≈ Stable”.
Is pneumococcal disease rising or falling in Guam?
ENCLAI's trend reading for pneumococcal disease in Guam 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 Guam publish pneumococcal disease surveillance data?
The counts on this page were published by CDC NNDSS Weekly Notifiable Diseases (State-Level). 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. Guam 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 pneumococcal disease records for Guam dated from 2022. 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.