Pheromoned

"Are they all like this?"
"What, vaguely amourous, then threatening to pull you arms off, putting 'quickly escalating to violence' to some blatant demonstration? No, only half or so, we're seperating them, but each time we think we've gotten the violent ones contained, one of the ones we thought non-violent become violent."
"Show me the footage when this happened last time."

In the small screen, twenty clones were sitting or standing, minding their own business.
Then, when Kea Dogstar 3b275667-3c6b-43db-b154-66f8e0ebcc1a stood up, half of his cellmates, mostly the female ones, started to fight without warning.

"Who's he?"
"Kea Dogstar, he's a geneticist and a medical doctor, already voted in to continue his genes."
"Did his cellmates know?"
"I doubt it, I only learned when I asked for all of their files, and I needed my captain's authority to get any of them."
"He swaggers though, surely he knows?"
"What, you think?"
"I think they picked a fight..."
"Because he was so sexy they lost their minds? That's preposterous."
"Was he there when the other group broke into a fight?"
"Yes, oh, you may be onto something. He was unaffected, but present during both scuffles."
"What do you bet, if you try to seperate them, they'll fight again?"
"No bet. Wait, why did the other group of fighters let him leave their group?"
"Those Black Ribbons used Four-X Knockout. Their body didn't have the energy to fight anymore, or to do much of anything really. And they'll have quite a headache, when they awake."
"How did you know?"
"Know what?"
"That he was the key? I reviewed the video four times, and there's a millisecond of response time, it's barely perceptible."
"Hmm, I'd rather not say."
"I insist, come on, you are a high muck muck of the Red Swatch, that much I know, but some of it can be applicable, after all, you do recruit..." There it was, he wanted in. She didn't blame him, it'd be a step up for someone mostly hassling drunkards in the middle of nowhere...
"Well, I looked for something out of place... And he was, darn, but he was out of place for such an obscure arse-end of nowhere, looking like six geneparents all contributed their best to him. He's way too good looking for such a dismal surrounding."
"Should I have him... prepared for you then?"
She bit her lip. "No, and do not presume, ever, that this happens. I won't say it never happens, I know it does, but the Red Swatch sleeps at night pretending most of us are above that kind of behaviour.

Transmission & Vectors

One asymptomatic carrier is infected.
This carrier emits spores that give the condition to susceptible subjects.
The carrier is otherwise unaffected.

Causes

What's not known by the crimson sashes at present is who engineered this. But it's too precisely targeted not to be intentional.

Sequela

Having your brisket caved by a fellow soldier isn't fun, but it's not necessarily lethal.
It's odd, and especially worrisome, to the Crimson Swatches, that this only affects clones, genemixes appear immune.