Sentinel

Built for Public Health Communication · Plain-language health and claim checking

An early-signal board for public health — catch anomalies in everyday indicators before they're confirmed outbreaks.

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← Signal board

Environmental · NWSS aggregate

Wastewater norovirus

Normalized norovirus concentration from sewershed sampling.

Normal · z +1.13

baseline (index/day)

current (index/day)

+1.13

deviation (z)

21-day history → today

Jun 6Jun 16Jun 26

range 0–58

The series runs flat near baseline, then ends on today's count — the point being scored. History mean ≈ 50, close to the stored baseline of 50.

How today scores

z = (current − baseline) / √baseline
  = (58 − 50) / √50 (7.1)
  = 1.13 → below 2 normal

Run for Jun 26, 2026. This is an early signal to investigate — not a confirmed outbreak. Aggregate counts only; no individual-level data exists in this indicator. Adjust the value back on the signal board to watch the level respond.

Showcase demo for the Born Between 2 Generals summit. Showcase · best home: Nonprofit / public-good. Seeded with realistic sample data; runs payment-dark (no billing). Not a production system.