"So, the reason that we're having less cases now is because of the lockdown measures that we have implemented" [https://www.youtube.com/watch?v=libhd7y8us0] [4:50]
Normally I would say definitely "fewer cases" because "case" is a countable noun. But I googled it and it seems that "less cases" is commonly used. Are there any other similar "abnormalities" or shall we say "exceptions"?