> Serrana, with 45,000 inhabitants
20 deaths in March/2021 to 6 in April/2021. When you go to see the stats since April/2020, you'll notice that there were full months with 0 or 1 death. [0]
Too soon, too small sample to draw such conclusions.
[0] For ex., search for "Serrana" in this site: https://especiais.gazetadopovo.com.br/coronavirus/casos-no-b...
edit: typo, should be "april/2020"