FA-65068 / Epidemic compartment models / Member archive

SIR with daily all-or-nothing vaccination campaign: dose supply cap · case 03

Susceptibles go negative once supply exceeds the remaining pool.

Member previewVariant 3 · 3 implementations · 7 checks per implementation

Case contract

Each day from day index start_day (inclusive), dose=min(doses_per_day, S) is given to susceptibles before transmission; dose*efficacy moves S->V; failed vaccinees stay in S; mixing uses the full pop; return [S, I, R, V, doses administered] rounded to 3.

Why this case matters

Compartmental epidemic calculations drive outbreak forecasts, vaccine targets and hospital planning; a single wrong flow, rate conversion or boundary silently changes every downstream number.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: supply exceeds susceptibles	`[-280.963, 0.014, 0.949, 380.0, 400.0]`	`[0.0, 1.516, 1.233, 97.251, 102.369]`	Failed

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