In 2007, melamine was deliberately added to an ingredient in pet food to enhance artificially its protein levels, causing renal failure in hundreds of cats and dogs in North America, Europe, and Africa. Later that year, diethylene glycol was mislabeled as non-toxic glycerin, then mixed into cold medicine, killing at least 100 people in Panama, including many children.
2007年，有人在宠物食品中故意添加三聚氰胺，以人为提高蛋白质的含量水平，导致北美、欧洲和非洲的数百只猫狗发生肾衰竭。同年晚些时候，二甘醇被误标为无毒甘油加入感冒药，在巴拿马夺去了100多人的生命，其中还包括很多儿童。