Bunkurd Sewer Disorder was a disease resulting from the consumption of bacteria originating from a Bunkurd sewer.
The implementation of Bunkurd Sewers initially occurred on Coruscant several centuries prior to the Galactic Empire's emergence. These sewers employed genetically altered bacteria to accelerate water purification. The bacteria were thought to improve processing speed by 30%, which Ton Phanan described as "amazing." However, if a living being ingested these bacteria, they would experience side effects similar to food poisoning. Mos Eisley, situated on the planet Tatooine, utilized a Bunkurd Sewer, and Falynn Sandskimmer once contracted the illness. She stated that she was "sick as a womp rat for a week."
Around or before 8 ABY, the planet Storinal experienced a Bunkurd Sewer Disorder outbreak, leading to the storage of some bacteria in a hospital for cure development. Wraith Squadron, who at the time were stationed on the Night Caller, planned to link up with the Hawkbat, a vessel under Zsinj's control. A decision was made to infect the Hawkbat with a mysterious ailment to prevent direct contact between the two crews. Ton Phanan, Kell Tainer, and Tyria Sarkin were tasked with infiltrating Storinal to acquire a culture. Based on Falynn's account, Bunkurd Sewer Disorder seemed to be an ideal fit.
The bacteria were introduced into the external air vents of the Hawkbat's shuttle and subsequently disseminated among the ship's crew. When the Hawkbat and the Night Caller eventually crossed paths a few days later, the Hawkbat was under quarantine.