"No, it's generally understood to be pure upside. It does not handle infection but it doesn't cause or worsen it either."

The other soldier shadowing this lady has been poking around on a device; He says something.

"Oh, that was fast, I'm clear to describe ordinary non secret psionics and precautions to you. Most known cases of psionic attacks last the length of a combat, no more - minutes at most - unless they involve physically putting things in the body and brain of a target. There is a species of aliens called Psyons. If you attack them and fail to hurt them, and they can see you, they automatically attempt what we call 'mesmerize'. If you - fail your will save? - not quite, I think, or maybe it is - you are stunned about one or two rounds. Psyons are also capable of causing people to go berserk, attacking anything in sight, terrified, generally fleeing or freezing, or sometimes dominate. All of these usually last only around two to five minutes and can be disrupted by injuring or killing the Psyon that did it. On the battlefield, standard procedure is to generally prioritize Psyons over other hostiles, and if domination is identified to try to kill the dominator as fast as possible even at the expense of other objectives."

"Understood. Which ones are the Psyons?"

She pulls up an image of an alien; It's different than the two species he's seen attacking that town. Huge bulging head with bone ridges, big black eyes, three-fingered hands, jawless mouth. There's a short and a tall example. 

"These are Psyons."

He studies the image carefully and then nods. "If I have enough advance warning to prepare the appropriate spells there are anti-enchantment protections."

"An ongoing objective of ours is the live capture of a Psyon officer. We believe they are a leadership caste and hope to understand their objectives and command structure."

"Understandable. Do they stop being able to use their enchantment powers after some number of uses, or without the use of their hands, or without line of sight, something like that? It seems otherwise challenging to hold them."

"The security procedures around that are part of what I am not permitted to tell you at this time. Aside from the fact that they exist."

"Understood." Means he can't help much but they must know that.