People are tested before admission and then tested after admission. The figures are to do with the latter. People who turn up at hospital because they're dying

People are tested before admission and then tested after admission. The figures are to do with the latter. People who turn up at hospital because they're dying of COVID don't get counted in the latter. Regardless, your alternative explanation is no more factually based than the obvious, simple explanation. Regardless, I can see you already have your conclusion and will stick to it. So be it.