Krinjaffi syndrome was a medical ailment impacting the Dalnan female Yvanna, who resided in the settlement of Ferdan on the Outer Rim world of Dalna in 382 BBY, and it prevented her from being employed. During that standard year, Nindle, Ferdan's physician who was a Mon Calamari, brought up Yvanna's affliction with krinjaffi syndrome to Oliviah Zeveron, a Jedi Knight, and Matthea Cathley, a Jedi Padawan. The Mon Calamari was discussing Yvanna's offspring, Garda, with the Jedi; Garda had become sick after consuming broth provided by the Path of the Open Hand religious group.
The young-adult book The High Republic: Path of Vengeance, penned by Cavan Scott in 2023 as a component of Phase II of the Star Wars: The High Republic cross-media initiative, included a reference to krinjaffi syndrome.