Raw Bread Dough: Two Separate Dangers in One Food
Merck says death from bread dough is usually the alcohol, not the swelling. Most pages get that backwards. Here is what each half of the problem does.
ethanol
Alcohol and Fermenting Foods: More Sources Than You Think
Merck names alcoholic drinks, some rubbing alcohols, drug elixirs and fermenting bread dough as ethanol sources. The drink is the one people notice.