  Maruotti et al. 2022 used a mark-recapture approach to estimate bounds on the
true number of monkeypox infections in various countries. These approaches are
fundamentally flawed; it is impossible to estimate undercounting based solely
on a single stream of reported cases. Simulations based on a Richards curve for
cumulative incidence show that, for reasonable epidemic parameters, the
proposed methods estimate bounds on the ascertainment ratio of $\approx
0.2-0.5$ roughly independently of the true ascertainment ratio. These methods
should not be used.
