Causal Stories

Karen was an assistant editor for a small publishing firm. She had a rare hereditary disease called Karpinson's hemotrysoma, characterized by the lack of an enzyme that normally breaks down certain proteins in the digestive system. Because of this, fermented drinks such as wine and liqueurs can cause a severe allergic reaction in someone with the disease. Karen had just received a promotion so her boss, Mr. Carlson, took her to an expensive French restaurant to celebrate. Mr. Carlson had been to this restaurant several times, so he ordered for both of them. As he looked over the menu, Mr. Carlson considered what to order for Karen. He first thought about ordering the Coquilles Saint-Jacques, but at the last moment decided on the Moules Mariniere instead. Although Mr. Carlson did not know this, both of these dishes were made with a wine sauce. Karen enjoyed her meal greatly, but began to feel ill shortly after finishing. Within minutes, she went into convulsions and was rushed away in an ambulance. She died on the way to the hospital.

Did Mr. Carlson's choice of dish cause Karen's death?