I am working as an editor for an edited book volume on covid-19.
I have come across a very peculiar chapter submitted by an author. In the chapter, the author discloses a personal incident where the author's father's friend passes away due to covid-19.
I am not sure what to do here i.e. whether to email the author as that paragraph seems very peculiar. Is describing such kind of incident, which I see as highly emotive and personal, allowed in academia for example book chapters or journal papers?