Disease Outbreak near Lancy, Switzerland
Reported by World Health Organization 111 days ago.
What the source measured
World Health Organization reported: Yellow fever is a viral disease found in areas of Africa and the Americas, spread by infected mosquitoes. Following an increase of cases in the Americas in 2025, transmission activity remained into 2026. From 1 January to 26 May 2026, six countries reported a total of 79 human infections along wi...
Urban PEI: 7,534,030 within a heuristic 200 km radius; not unique people.
How we know
One source: World Health Organization. Not yet confirmed by a second, independent source.
Our own score for this event is 54 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Event data
| Type | Disease Outbreak |
| Severity | Medium |
| Calamity Score (ours) | 54 / 100 |
| Legacy data-support index | 0.82/1 |
| Coordinates | 46.2000, 6.1000 |
| Nearest city | Lancy (1 km) |
| Urban exposure index (PEI) | 7.5M within 200 km |
| Impact tier | significant |
| Timestamp | 2026-06-24T18:00:00.000Z |
| Source | https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON610 |
| Licence | CC BY-NC-SA 3.0 IGO · World Health Organization |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: who. Occurrence: 2026-06-24T18:00:00.000Z.
First archived: 2026-06-27T17:59:19.664Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score breakdown
Technical details
| DonId | 2026-DON610 |
| DiseaseName | Yellow fever |
| PubDate | 2026-06-24T18:00:00Z |
Safety information
What to do in a disease outbreak
Health authorities decide what to do in an outbreak; these are the habits that help in almost every one. From the World Health Organization and the ECDC.
For this reportDisease Outbreak · Lancy
Follow the health authorities
Your country’s and your region’s: they know which disease it is and what protects against it.
WHO · ECDCWash your hands
Often, with soap and water, for at least 20 seconds.
WHOIf you have symptoms, call first
Call a doctor or the health line before going in, so you do not infect others on the way.
WHO · ECDC
Before, during, after. Here it is “after”.
Before · Any time
Keep vaccinations up to date
Yours and your children’s, and those advised for travel.
WHO · ECDC
During · During the outbreak
Follow official advice
Not rumours or messages passed along.
Cover coughs and sneezes
With a tissue or your elbow.
WHO · ECDC
After · When it is declared over
Keep the habits
Clean hands and vaccinations protect next time too.
WHO
Questions people ask
Where do I find reliable information?
From your national health authority and the World Health Organization. Calamity.live reports what they publish; it does not give medical advice.