A few hours after the aliens came…
"So," Jadzia exclaimed, "Any plans for this afternoon?" Major Kira shrugged.
"Not that I can think of, no. May I join you?"
"How did you know that was just what I wanted to ask?" Jadzia said with a smile. Kira raised an eyebrow in humor and the two friends headed toward the promenade. With no real incentive, the pair merely bought drinks and strolled past the stores, stopping every so often when something caught Jadzia's eye. Jadzia tried not to stop too often, as she knew the major preferred not to purchase items her life could go on without, but she stopped enough, because it was something she liked to do.
"What was that look you gave Quark?" Kira asked in a humorous tone.
"Hm?" Jadzia responded.
"When we bought our drinks."
"What made you bring it up now?"
"I couldn't figure it out on my own."
"Oh," Jadzia said mysteriously, "Payback."
"I don't see why you don't go for the physical approach. A kick here, a well placed punch there…"
"Believe me, physical is the last thing I want to be with Quark." Jadzia responded, a hint of exasperation in her tone.
"I understand. So, what are you paying him back for?" Kira prompted. Jadzia began to reply, but suddenly lurched forward and dropped her drink. The glass shattered on impact with the floor, liquid spilling everywhere. "Jadzia? Jadzia, are you alright?" Kira asked quickly. Jadzia looked at Kira, but then dropped to her knees and clutched at her stomach. "Sickbay," Kira slapped her combadge and shouted, "Medical emergency, two to beam over." A blue light engulfed the pair, and they were gone, materializing only moments later on the sickbay floor. As the doctor came running over, Jadzia retched. Kira winced a little, but held the trill's hair back as she vomited. Kira kept a hand on her back while helping the doctor move Dax onto a biobed. Bashir rushed to press a hypospray into her neck, but didn't succeed before Jadzia rolled over and vomited again over the side. She opened her eyes as the familiar hiss of a hypospray filled her ears.
"Help me," she whispered.
"Jadzia," the doctor said, "can you tell me what happened?" She held his gaze, but was unable to speak as she held her stomach and lurched forward. Only when the doctor and Kira had successfully restrained her, she was able to choke out a word.
"Symbiont."