quacksalver$65932$ - traduzione in olandese
![[[Pietro Longhi]]'s ''The Charlatan'' (1757)](https://commons.wikimedia.org/wiki/Special:FilePath/Bemberg Fondation Toulouse - Le Charlatan - Pietro Longhi - Inv 1029.jpg?width=200 "[[Pietro Longhi]]'s ''The Charlatan'' (1757)")
![''The pee looker (Piskijker)'', [[David Teniers the Younger]] (1660)](https://commons.wikimedia.org/wiki/Special:FilePath/David Teniers II - The Consultation (c.1660).jpg?width=200 "''The pee looker (Piskijker)'', [[David Teniers the Younger]] (1660)")
![Electro-metabograph machine on display in the "Quackery Hall of Fame" in the [[Science Museum of Minnesota]], St. Paul, Minnesota, US](https://commons.wikimedia.org/wiki/Special:FilePath/Electro-metabograph machine.jpg?width=200 "Electro-metabograph machine on display in the \"Quackery Hall of Fame\" in the [[Science Museum of Minnesota]], St. Paul, Minnesota, US")
![''The Extraction of the Stone of Madness'' by [[Jan Sanders van Hemessen]], c. 1550](https://commons.wikimedia.org/wiki/Special:FilePath/Hemessen-cirujano-prado.jpg?width=200 "''The Extraction of the Stone of Madness'' by [[Jan Sanders van Hemessen]], c. 1550")
![''The Quack Doctor'', [[Jan Victors]] (c. 1635)](https://commons.wikimedia.org/wiki/Special:FilePath/Jan Victors 004.jpg?width=200 "''The Quack Doctor'', [[Jan Victors]] (c. 1635)")
![Marriage à-la-mode]]'' (''The Visit to the Quack Doctor'')](https://commons.wikimedia.org/wiki/Special:FilePath/Marriage A-la-Mode 3, The Inspection - William Hogarth.jpg?width=200 "Marriage à-la-mode]]'' (''The Visit to the Quack Doctor'')")
![A quack selling cards with a verse from the [[Quran]] which is supposed to protect the wearer from [[snakebite]]s. [[Tabant]], Aït Bouguemez valley, Central [[Morocco]] (2009).](https://commons.wikimedia.org/wiki/Special:FilePath/Quack in Tabant, Aït Bouguemez.jpg?width=200 "A quack selling cards with a verse from the [[Quran]] which is supposed to protect the wearer from [[snakebite]]s. [[Tabant]], Aït Bouguemez valley, Central [[Morocco]] (2009).")
![Revigator]] (sometimes misspelled Revigorator) was a pottery crock lined with radioactive ore that emitted radon.](https://commons.wikimedia.org/wiki/Special:FilePath/Revigorator.jpg?width=200 "Revigator]] (sometimes misspelled Revigorator) was a pottery crock lined with radioactive ore that emitted radon.")
!["Tho-radia powder" box, an example of [[radioactive quackery]]](https://commons.wikimedia.org/wiki/Special:FilePath/Tho-Radia-IMG 1228.JPG?width=200 "\"Tho-radia powder\" box, an example of [[radioactive quackery]]")
![[[Dalby's Carminative]], Daffy's Elixir and [[Turlington's Balsam]] of Life bottles dating to the late 18th and early 19th centuries. These "typical" patent or quack medicines were marketed in very different, and highly distinctive, bottles. Each brand retained the same basic appearance for more than 100 years.](https://commons.wikimedia.org/wiki/Special:FilePath/Three early medicine bottles.jpg?width=200 "[[Dalby's Carminative]], Daffy's Elixir and [[Turlington's Balsam]] of Life bottles dating to the late 18th and early 19th centuries. These \"typical\" patent or quack medicines were marketed in very different, and highly distinctive, bottles. Each brand retained the same basic appearance for more than 100 years.")
Definizione
Wikipedia
Quackery, often synonymous with health fraud, is the promotion of fraudulent or ignorant medical practices. A quack is a "fraudulent or ignorant pretender to medical skill" or "a person who pretends, professionally or publicly, to have skill, knowledge, qualification or credentials they do not possess; a charlatan or snake oil salesman". The term quack is a clipped form of the archaic term quacksalver, from Dutch: kwakzalver a "hawker of salve". In the Middle Ages the term quack meant "shouting". The quacksalvers sold their wares at markets by shouting to gain attention.
Common elements of general quackery include questionable diagnoses using questionable diagnostic tests, as well as untested or refuted treatments, especially for serious diseases such as cancer. Quackery is often described as "health fraud" with the salient characteristic of aggressive promotion.
