Vensa's Syndrome was a disease that affected Bajorans. It can cause loss of senses like sight and hearing, but could also cause paralysis or insanity. In 2366, Kira Nerys was inoculated against Vensa's Syndrome when she went undercover at the Officers' Club. Such inoculations were unheard of at the time for the general Bajoran population, such as those in camps. (DS9 - Tales from the Captain's Table short story: "The Officers' Club")