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.

✎ Tried it? Share pilot feedback →

← Signal board

Syndromic ED · NSSP/BioSense aggregate

Heat-related ED visits

Heat-illness-coded emergency visits — currently below expected.

Normal · z -0.60

baseline (visits/day)

current (visits/day)

-0.60

deviation (z)

21-day history → today

Jun 6Jun 16Jun 26

range 0–51

The series runs flat near baseline, then ends on today's count — the point being scored. History mean ≈ 46, close to the stored baseline of 45.

How today scores

z = (current − baseline) / √baseline
  = (41 − 45) / √45 (6.7)
  = -0.60 → 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.