Star Trek: Deep Space Nine1993

Commander Sisko:
[to Chief O'Brien about Quark] Easy, Chief. He doesn't know what he's doing. [points to Lwaxana, they all look at her]

Lwaxana Troi:
What are you looking at me for? [Cuts to sickbay] Zanthi Fever? Oh, that's ridiculous. That's impossible. That only affects older Betazoids.

Doctor Bashir:
That may be, but according to my tests, you show all the symptoms. Zanthi Fever is a virus which affects the empathic abilities of, uh, mature Betazoids. It causes them to project their emotions onto others.

Commander Sisko:
Then Mrs. Troi's amorous feelings for... someone on the station were being passed along to the people around her?

Doctor Bashir:
Not everyone. Only those within close proximity to her when she had an attack, and even then, they would've had to have been with some preexisting latent attraction.

Commander Sisko:
You're saying Dax...?

Doctor Bashir:
Only on a subconscious level. Best not to think about it too much if you ask me.

Lwaxana Troi:
I am terribly sorry, Commander. I hope I haven't caused too much trouble.