Official surveillance · one quiet atlas · updated weekly
The world's infectious-disease pulse, from official sources.
WHO, ECDC and US CDC surveillance data, every number with its source, period and revision record. Colour shows quantity only — never a risk level.
Brightness and size = where a country’s latest reading sits within its own history. Not a comparison between countries, not a risk ranking, not a forecast.
Influenza lab detections · last 8 weeks
WHO FluNet · data week 2026-W44 (Oct 26–Nov 1) · Last updated Nov 2, 2026, 12:03
No related event notices in the last 90 days
Dot map: one centroid point per country over a heavily generalised land outline, no borders. Dot area is the number of detections; it also reflects testing volume, is not a risk measure and must not be used for ranking.
Data table (text alternative)
Table: the 15 countries/areas with the most influenza detections in the last 8 weeks
| Country/area | Value | Tested | Positivity | As of |
|---|---|---|---|---|
| China | 21,710 | 153,855 | 14.1% | 2026-10-19 |
| United States | 19,774 | 374,426 | 5.3% | 2026-10-19 |
| Canada | 7,062 | 166,938 | 4.2% | 2026-10-19 |
| China Hong Kong | 6,085 | 57,570 | 10.6% | 2026-10-12 |
| United Arab Emirates | 2,443 | 7,982 | 30.6% | 2026-10-12 |
| Chile | 2,407 | 28,697 | 8.4% | 2026-10-19 |
| Brazil | 1,938 | 66,195 | 2.9% | 2026-10-19 |
| Australia | 1,711 | 19,870 | 8.6% | 2026-10-19 |
| Malaysia | 1,525 | 5,546 | 27.5% | 2026-10-12 |
| Argentina | 1,496 | 14,480 | 10.3% | 2026-10-12 |
| Qatar | 1,459 | 5,084 | 28.7% | 2026-10-05 |
| Norway | 1,262 | 39,572 | 3.2% | 2026-10-19 |
| Indonesia | 1,253 | 2,533 | 49.5% | 2026-10-12 |
| Colombia | 962 | 15,053 | 6.4% | 2026-10-19 |
| Spain | 818 | 30,807 | 2.7% | 2026-10-19 |
Observations
2.1M
one schema, from 13 datasets
Countries/areas with recent influenza data
127
WHO FluNet · last 8 weeks
Official / open sources
6
WHO · ECDC · US CDC · OWID · OpenDengue
WHO ⇔ OWID agreement
99.92%
identical COVID-19 country-weeks in the overlap
Start here
The seasons of influenza
One ring per season: more than a decade of WHO FluNet weekly data drawn as polar year-rings.
Stitching: how sources hand over
When several sources cover the same country and metric: which one wins, in which week the series switches, and how the overlap is checked.
Data sources & licences
Each source's licence, attribution wording and known issues; how derived data is re-published.
Three principles
Every number is traceable
Source, period, retrieval time and hash are public; provisional data is labelled and missing values are never filled with zero.
Stitching is drawn, not hidden
Cross-source series carry a provenance ribbon showing who takes over when, with overlap agreement alongside.
No ranking, no forecasts
No risk scores, no predictions, no medical advice. Colour means quantity.