Toxic Oil Syndrome (TOS) is a rare and severe illness that emerged in Spain in 1981. It was caused by the consumption of rapeseed oil that had been fraudulently sold as olive oil. TOS is characterized by a range of symptoms including fever, respiratory distress, muscle pain, and neurological complications. The prevalence of TOS is relatively low, with the outbreak in Spain affecting an estimated 20,000 people, resulting in over 1,000 deaths.
While TOS was primarily observed in Spain during the 1981 outbreak, isolated cases have been reported in other countries as well. However, it is important to note that TOS is considered a rare condition and its prevalence is significantly lower compared to other illnesses.
The exact prevalence of TOS in the general population is difficult to determine due to its rarity and the specific circumstances surrounding the 1981 outbreak. Nonetheless, it serves as a reminder of the potential dangers of food fraud and the importance of stringent quality control measures to ensure public safety.