Metodología
Cómo se recopilan, deduplican y verifican los datos.
Procesamiento de datos
Los casos se obtienen bajo demanda del ArcGIS FeatureService, se almacenan en caché en Cloudflare KV con un TTL de 5 minutos y se sirven al mapa a través de un endpoint JSON optimizado para el borde. El pipeline degrada gracefulmente: si la fuente upstream no está disponible, el mapa renderiza la última instantánea en caché.
Las noticias se agregan desde Google News RSS mediante cuatro consultas específicas (hantavirus, ANDV hantavirus, MV Hondius hantavirus, brote hantavirus), se deduplican por URL, se ordenan por fecha de publicación y se limitan a 60 elementos.
Geocodificación y agrupación
Las ubicaciones de los casos se asignan a códigos de país ISO-2 mediante una tabla de referencia que cubre las principales ciudades y regiones de los países con brotes activos. Los casos que no se pueden asignar con confianza a un país (como los casos a bordo del MV Hondius) se agrupan bajo un seudopaís INTL y aparecen en la página del clúster correspondiente.
Preguntas frecuentes
Where does the case data come from?+
Primary case data is pulled from the public ArcGIS FeatureService Tracking_Hantavirus_2026 maintained by independent researchers, cross-checked against WHO Disease Outbreak News bulletins, national health agency epidemiological reports (Argentina, Chile, Switzerland, USA, etc.), and verified open reporting aggregated via GDELT.
How often is the map updated?+
Cases are refetched every 5 minutes from the ArcGIS source through a Cloudflare KV cache. News headlines are refreshed every 15 minutes from Google News RSS. The Last update timestamp in the map header reflects the most recent successful fetch.
How are duplicates handled?+
Cases are deduplicated on the upstream feature service by ObjectID. News items are deduplicated by URL and title before display. We do not merge cases across sources automatically — if a case appears with conflicting metadata across reports we prefer the most specific official source.
What counts as 'confirmed' vs 'suspected'?+
We mirror the status assigned upstream. Generally, confirmed cases have laboratory confirmation (RT-PCR or serology), suspected cases have a compatible clinical and epidemiological picture without lab confirmation at the time of reporting. Status can change as testing completes.
How accurate are the case locations?+
Case points represent the patient's last documented exposure or place of diagnosis, not precise residential addresses. Coordinates are approximate, often at city or regional centroid level, and should not be used for individual identification.
Are person-to-person transmission chains modeled here?+
We tag cases by Exposure_Group and present clusters (e.g., MV Hondius, April 24th flight) as derived from upstream metadata. We do not run our own contact-tracing or genomic phylogeny — those are the responsibilities of national reference labs and WHO collaborating centers.