A woman in Brazil has been hospitalized with Haff disease, also known as black urine disease, following the consumption of contaminated fish. The municipality of Goianésia is now monitoring the situation and has issued an alert to hospitals. The disease, which is caused by a toxin in fish, can cause severe symptoms such as muscle stiffness, pain, and dark urine. The exact source of the toxin is not known. The health department in the State of Bahia reported several cases of the disease last year, with two reported incidents and one death this year.