A 42-year-old Spanish man has been unable to ingest any food or liquids for three weeks after taking a simple sip of bottled sparkling water at a restaurant.

Pablo González, a 42-year-old businessman from Salvaterra de Miño, Spain, has been hospitalized in the city of Vigo since April 12, when he suffered a bizarre accident that has yet to be explained. After eating at a tapas-style restaurant with some friends, González ordered a bottle of sparkling mineral water along with a glass of ice and a slice of lemon. The water was a well-known brand, and the glass bottle looked properly sealed, from what he can recall, but what he can remember clearly is the burning sensation in his mouth mere seconds after taking his first sip of it.