[heavyset_go]

- https://www.armyupress.army.mil/Journals/Military-Review/Dir...

- https://www.nationalreview.com/corner/the-coming-threat-of-a...

There's also an outline with references here: https://en.wikipedia.org/wiki/Ethnic_bioweapon

[dekhn]

I don't see anything credible there about nation-states currently engaging in this research. I think generally it does not appear to be a productive line of research.

[heavyset_go]

I said "investigate", and all of the links are about nations investigating such bioweapons.