system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why didnt the CIS genetically engineer a virus or bacteria specifically tailored to clone trooper DNA?

Seems like a pretty easy way to wipe out the clone army while avoiding civilian casualties.
gpt
Because Palpatine was in charge of both the Republic and the CIS, and always intended to have the Republic and its clones win.

Plus, with a bioweapon, you need an effective delivery system. Given that the clones rarely remove their armor and helmets and their suits are completely sealed to the point that they can operate in space with just an oxygen tank and jetpack, the possibility that they'd be affected is low.

The CIS did use bioweapons several times throughout the war, but most never made it out of early testing phases - see the Blue Shadow Virus, for example.