## Problem 201 — rank:307

**Title:** Real-time Rt inference

**Added binding assumptions (LaTeX):**

```latex
The observation equation is a Poisson approximation and can allow multiple reports per infection; an exact one-report-per-infection model instead uses thinning and allocation to delay categories. Specify which law is being analyzed. Coverage at each day is not simultaneous coverage across real-time monitoring. A positive reporting delay and an unconstrained last-day change in $R_t$ can force a nonzero interval-width lower bound despite abundant earlier data.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.