<unk> es, also known as flu<unk> es, are social activities in which children are deliberately exposed to infectious diseases such as chickenpox. Such<unk> es originated to "get it over with" before vaccines were available for a<unk> cular illness or because childhood infection might be less severe than infection during adulthood, according to proponents. For example, measles is more dangerous to adults than to children over five years old. Deliberately exposing people to diseases has since been discouraged by public health officials in favor of vaccination, which has caused a decline in the practice of<unk> es, although flu<unk> es saw a resurgence in the early 2010s. Another, more modern, method of intentional contagion involves shipping infectious material. In many<unk>  of the world, shipping infectious items is illegal or tightly regulated.
Pox party
Street medic
Caustic pencil
Creosote
Pharmasave
Riken
Plague doctor
Clinic escort