Mr. Yuk

Mr. Yuk is a trademarked graphic image, created by UPMC Children's Hospital of Pittsburgh, and widely employed in the United States in labeling of substances that are poisonous if ingested.

A Mr. Yuk sticker

Overview
The 1970s Mr. Yuk Public Service Announcement

To help children learn to avoid ingesting poisons, Mr. Yuk was conceived by Richard Moriarty, a pediatrician and clinical professor of pediatrics at the University of Pittsburgh School of Medicine who founded the Pittsburgh Poison Center and the National Poison Center Network.[1] Moriarty felt that the traditional skull and crossbones representing poison was no longer appropriate for children; Congressman Bill Coyne later said that by the 1970s the symbol was "associated with swashbuckling pirates and buccaneers rather than with harmful substances."[2] The Jolly Roger flag was used on breakfast cereals and chewing gum, and it was the insignia for Moriarty's local major league baseball team, the Pittsburgh Pirates.[3]

The design and color were chosen when Moriarty used focus groups of young children to determine which combination was the most unappealing. Possible expressions were "mad" (crossed eyes and intense expression), "dead" (a sunken mouth and Xs for eyes), and "sick" (a sour expression with the tongue sticking out).[3] Children were asked to rank the faces according to which they liked the best, along with the skull and crossbones, and the "sick" face was least popular.[3] The shade of fluorescent green that was chosen was christened "Yucky!" by a young child and gave the design its name.[2]

Mr. Yuk was first introduced in Pittsburgh 48 years ago in 1971,[4] and over the next few years, Mr. Yuk stickers gained nationwide usage.[4][5] The stickers usually contain phone numbers of poison control centers that may give guidance if poisoning has occurred or is suspected. Usually, stickers may carry a national toll-free number (1-800-222-1222 in the United States). In some areas, local poison control centers and children's hospitals issue stickers with local numbers, under license. Such an example is in Pittsburgh, where the telephone number for the Poison Control Center is 681-6669.

A public service announcement was also produced in the 1970s featuring a theme song.[2]

Effectiveness

At least two peer-reviewed medical studies (Fergusson 1982, Vernberg 1984) have suggested that Mr. Yuk stickers do not effectively keep children away from potential poisons and may even attract children.[6] Specifically, Vernberg and colleagues note concerns for using the stickers to protect young children. Fergusson and colleagues state that "the method may be effective with older children or as an adjunct to an integrated poisoning prevention campaign".[7]

To evaluate the effectiveness of six projected symbols (skull-and-crossbones, red stop sign, and four others), tests were conducted at day care centers. Children in the program rated Mr. Yuk as the most unappealing image. By contrast, children rated the skull-and-crossbones to be the most appealing.[8]

The Mr. Ouch symbol, developed by the National Electrical Manufacturers Association (NEMA) to warn children about electrical hazards, has a similar design and strategy.

Use restrictions

Mr. Yuk and his graphic rendering are registered trademarks and service marks of the UPMC Children's Hospital of Pittsburgh, and the rendering itself is additionally protected by copyright.[9] This means that the name and graphic image cannot be used without a license from the owner—unlike the skull and crossbones symbol, which is in the public domain.

The Children's Hospital of Pittsburgh of UPMC gives out free sheets of Mr. Yuk stickers if contacted by mail.[10]

Mr. Yuk materials can also be ordered online from the University of Pittsburgh.

  • Mr. Yuk has taken on a cult status throughout the city of Pittsburgh among older residents; the best example is the Ultimate Frisbee team at Carnegie Mellon University, which affectionately goes by "Mr. Yuk" and uses a variety of discs adorned with the classic logo.[11]
  • An image of Mr. Yuk is featured in the video game Call of Duty: Modern Warfare 2 inside the lens cap of the Walther WA 2000 sniper rifle, as well as the Barrett M82 sniper rifle, where the sticker is rotated 90 degrees counter-clockwise. It also appears as the image for receiving "bad" accolades.
  • A Mr. Yuk sticker appears on a batch of reject retro-mutagen which Michelangelo rubs on in the Teenage Mutant Ninja Turtles episode "Mikey Gets Shellacne".

See also

References
  1. "Adult Programs". Carnegie Museum of Natural History. Retrieved February 14, 2013.
  2. Potter, Chris (September 16, 2004). "Is it true that the well-known "Mr. Yuk" sticker was created right here in Pittsburgh?". Pittsburgh City Paper. Retrieved December 11, 2015.
  3. Fisher, Ken (June 25, 1973). "Yeech! It's Mr. Yuk, He's Poison!". Pittsburgh Post-Gazette. p. 15.
  4. "Mr. Yuk doing 'disgusting' job". Tuscaloosa News. (Alabama). Associated Press. January 4, 1975. p. 2.
  5. "'Mr. Yuk' poison label is new warning for children". Lewiston Morning Tribune. (Idaho). March 7, 1975. p. 14A.
  6. Vernberg K, Culver-Dickinson P, Spyker DA. (1984). "The deterrent effect of poison-warning stickers". American Journal of Diseases of Children 138, 1018–1020. PMID 6496418
  7. Fergusson DM, Horwood LJ, Beautrais AL, Shannon FT. (1982). "A controlled field trial of a poisoning prevention method". Pediatrics 69, 515–520. PMID 7079005
  8. Washington Poison Center Archived 2008-11-09 at the Wayback Machine
  9. Rice, J. Berg (2012). Salvendy, Gavriel (ed.). Handbook of Human Factors and Ergonomics. John Wiley & Sons. p. 1479. ISBN 9780470528389.
  10. "Mr. Yuk - Children's Hospital of Pittsburgh of UPMC". Children's Hospital of Pittsburgh.
  11. Website for CMU men's ultimate team]
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