This is a listing of regional variations on the hot dog. Different areas of the world have local variations on the type of meat used, condiments and means of preparation:

On July 7 and July 11, 2007, public health officials in Texas and Indiana, respectively, reported to CDC four suspected cases of foodborne botulism, two in each state. Investigations conducted by state and local health departments revealed that all four patients had eaten brands of Castleberry’s hot dog chili sauce before illness began.

On Wednesday, July 18, a warning was issued by health officials that cans of Castleberry’s, Austex, and Kroger brand hot dog chili sauce could be contaminated by a botulism toxin. The warning applies to cans with the ''best buy'' date from April 30, 2009 to May 22, 2009.

Federal investigators shut down a Georgia plant Saturday after finding the poisonous substance that causes botulism in 16 cans of hot dog chili sauce produced there, Dave Melbourne, a senior vice president for Castleberry's in Augusta said Monday.

Connors Bros. Income Fund on Monday expanded the recall of hot dog chili sauce made by its Castleberry Foods unit last week to include canned meat products on concerns they are also contaminated by a bacteria which causes botulism.

Federal health officials warned consumers last week to throw away certain cans of hot dog chili sauce after the product was linked to botulism that sent four people to the hospital.