Corrections

This file logs corrections to previously published figures. Per methodology, each correction lists what changed, when, why, and links to the corrected source.

Historical snapshots in /snapshots/YYYY-MM-DD/ are never edited after the day they are written. They preserve the record of what was published at the time.

Format

Each entry follows this format:

YYYY-MM-DD — Field changed — Brief description. (source)

Log

2026-05-14 — Confirmed cases 9 → 8 (downward revision) — WHO DON 601 (13 May 2026) revised the confirmed case count from 9 to 8. One previously confirmed case reclassified as "inconclusive" after conflicting laboratory results from two different labs (one positive, one negative; retesting in progress). ECDC daily update (14 May 2026) confirms the revised figure: 8 confirmed, 1 inconclusive, 2 probable, 3 deaths. The "inconclusive" classification is noted in KPI detail text but does not map to either confirmed or suspected. (WHO DON 601)

2026-05-14 — Cluster country list 9 → 8 (composition change) — WHO DON 601 revised the list of cluster-affected countries from 9 to 8. Removed: Germany, Netherlands, South Africa, Switzerland. Added: France, Saint Helena, United States. The DON does not explain why specific countries were removed or added. Retained: Argentina, Cabo Verde, Chile, Spain, United Kingdom. (WHO DON 601)

2026-05-10 — Editorial scope (refinement) — HantaTracker narrowed further from "Andes virus only" to "currently-active Andes-virus risk events only". Pre-cluster Andes-virus surveillance counts (Argentina 66 confirmed / 21 deaths and Chile 35 / 7, both from PAHO 19 December 2025, EW 1–47) retired from displayed totals. Globals revised: confirmed 107 → 6, suspected unchanged at 2, deaths 31 → 3, countriesReporting unchanged at 9 (still the 9 cluster countries), activeOutbreaks unchanged at 1. cases_by_country.json is now empty — the WHO DON does not attribute cluster cases to specific destination countries. Pre-cluster reporting preserved as historical news in feed.json. Reasoning in METHODOLOGY.md §Scope. Retired figures preserved in earlier same-day commits (b4729f3 pre-pivot, <this commit's predecessor> first-pivot). (WHO DON 600)

2026-05-10 — Editorial scope — HantaTracker narrowed from "all hantaviruses" to "Andes virus (Orthohantavirus andesense) only" — the one hantavirus species with documented human-to-human transmission. Country rows for Brazil, Bolivia, Panama, Paraguay, Uruguay, and the United States retired. Their published case counts cover non-Andes hantaviruses (Sin Nombre in the USA, Choclo in Panama) or carry no Tier-1 strain attribution (Brazil, Bolivia, Paraguay, Uruguay) — Andes virus is documented in the literature for some of these countries but no Tier-1 strain-attributed figure has been published. Globals retired alongside: confirmed 235 → 107, suspected unchanged at 2, deaths 62 → 31, countriesReporting 15 → 9, activeOutbreaks 2 → 1 (Paraguay's Mariscal Estigarribia HPS outbreak dropped — strain not attributed). Reasoning in METHODOLOGY.md §Scope. The retired figures are preserved in snapshots/2026-05-10/ (the post-DON-600, pre-pivot snapshot was committed as b4729f3). (WHO DON 600)