I'd just say the numbers are different.

Another case in which the numbers are oddly (one might say "suspiciously") different are the UK's number of critical patients (163) compared to their known number (19522), which is very low at 0.8% compared to France's 11.5%. That's a massive difference in the number of seriously critical patients, given that the UK has a sufficiently large sample size now.

> critical patients

What does that even mean? The UK isn't testing unless you need hospital care (or you're special, e.g. Prince Charles, Boris Johnson, Idris Elba), aren't all of those patients somewhat critical? Or is "critical" just "hooked up to a ventilator" in which case it could be limited by the number of ventilators instead?

I like to thing of it as a unit problem. The numbers are presented as x "items", but the definition of "items" for each of the numbers is not consistent (or, even, actually known).