Then there's the freighter captain who, despite quarantine orders, tried to launch from the station in order to escape the virus he may have already contracted. Of course, he didn't care, and his recklessness quickly turned things from bad to worse when his ship's power core is ruptured in the attempt to escape. Luckily some fast thinking from Quark and Odo prevented an explosion from severely damaging the base, though it stands to reason the explosion may have contained the virus sooner. Perhaps not in the way any character would've wanted, of course, but it needed to be said.