The problem is that due to significant and pervasive behaviour changes, other forms of mortality and altered.

In some places, there are apparently many fewer people dying from the flu, because, well, we're isolated from one another!

Similarly, fewer car accidents. Suicides are probably altered, as well as violence in some cases, in particular domestic violence.

People forgoing treatments for any host of disease due to either fear of going to the clinic, or delayed treatments.

etc..