The cronut burger did it. A Toronto Public Health investigation into the food poisoning of more than 100 people at Toronto's Canadian Nation Exhibition (CNE) concluded that the one thing sick patrons had in common was eating the notorious doughnut-croissant-cheeseburger invention.

Health officials said food samples of the cronut burgers were contaminated with staphylococcus aureus, or staph aureus, a type of bacteria often found on skin, hair, noses and throats of people and animals. It can cause food poisoning when a contaminated handler touches food and doesn't refrigerate it properly.

Dr. David McKeown, Toronto's medical officer of health says the toxin is a recognized cause of food borne illness.

"Early laboratory tests indicated that samples of the cronut burger were contaminated by staphylococcus aureas toxin,'' he said.

Contaminated surfaces and equipment can also play a factor, because staphylococcus often multiplies quickly.

Symptoms of the illness range from an upset stomach to diarrhea, fever, vomiting, abdominal cramps, and dehydration. TPH is continuing its investigation to determine how the contamination occurred in the first place.

Initial reports on Wednesday put the number of sick at around a dozen, but TPH said they received about 150 reports of gastrointestinal symptoms from people who ate at the CNE between Aug. 16 and Aug. 20.

Epic Burger and Waffles, the vendors of the cronut burger, voluntarily shut down following the allegations.

The connection between the food poisoning and the heavily publicized cronut burger, the crown jewel of the fair's 2013 'food' offerings, has triggered a firestorm of reaction on social media, and international media ridicule.

CNE general manager David Bednar says the CNE is now confident that the outbreak is over.

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  • Cronut Burger

    <strong>CREATORS: </strong> <a href="https://www.facebook.com/pages/EPIC-Burgers-and-Waffles/227090690663708" target="_blank">Epic Burgers And Waffles</a> and <a href="http://www.ledolci.com/" target="_blank">Le Dolci</a> <strong>WHAT'S IN IT?</strong> A maple bacon cronut rolled in cinnamon sugar stuffed with a beef patty, cheese and topped with a homemade maple bacon jam.

  • Chocolate Hazelnut Gelato Bun

    <strong>CREATORS: </strong> Sweet Escapes <strong>WHAT'S IN IT?</strong> Chocolate hazelnut gelato inside a brioche bun.

  • Spice Cream Cone

    <strong>CREATORS: </strong> <a href="https://www.facebook.com/JustConeIt" target="_blank">Just Cone It! </a> <strong>WHAT'S IN IT?</strong> A sweet, salty and spicy mixture of chili peppers, Nutella, bacon and vanilla ice cream inside a pizza crust cone.

  • Bacon And Peanut Butter Milkshake

    <strong>CREATORS: </strong> Bacon Nation Canada <strong>WHAT'S IN IT?</strong> Bacon, peanut butter and ice cream all whipped up in a shake.

  • Nutella Sweet Potato Fries

    <strong>CREATORS: </strong> <a href="https://www.facebook.com/pages/Spread-Nutellerie-Toronto/564674083574085" target="_blank">Spread Nutellerie Toronto </a> <strong>WHAT'S IN IT?</strong> Sweet potato fries topped with icing sugar, sea salt and Nutella.

  • Vegan Nachos

    <strong>CREATORS: </strong> <a href="https://www.facebook.com/WildChildsKitchen" target="_blank">Wild Child's Kitchen </a> <strong>WHAT'S IN IT?</strong> Corn nachos, guacamole, salsa, vegan "beef", peppers and vegan sour cream.

  • Rice Balls

    <strong>CREATORS: </strong> Corrado's <strong>WHAT'S IN IT?</strong> Vegetarian and meat-stuffed rice balls topped with marinara sauce.

  • Spinach And Feta Pies

    <strong>CREATORS: </strong> Thyme and Olives <strong>WHAT'S IN IT?</strong> Spinach and feta stuffed pies

  • Smoked Beef Lasagna

    <strong>CREATORS: </strong> <a href="http://www.gatorbbq.ca/" target="_blank">Gator BBQ </a> <strong>WHAT'S IN IT?</strong> Smoked beef brisket lasagna

  • "Shaved Snow"

    <strong>CREATORS: </strong> Chilly Ribbons <strong>WHAT'S IN IT?</strong> Wafer-thin ribbons of shaved snow offered in over 40 flavours.

  • NEXT: Top CNE Food Items From 2012

  • Baked And Loaded

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: A sweet potato filled with marshmallows and pecans, topped with (what else?) bacon bits.

  • Sugar Cookie French Fries And Buttercream Icing

    From <a href="https://twitter.com/SugarStarsTV" target="_hplink">Sugar Stars</a> (at The Food Network Canada stage): 'Fries' made from sugar cookies, cut into rectangular shapes, topped by buttercream icing dyed to look like ketchup.

  • Spicy Pork Bao Taco

    From <a href="https://www.facebook.com/FarEastTG" target="_hplink">Far East Taco</a>: Just as delicious as it sounds, with a healthy dosage of kimchi for spectacular flavour.

  • Bulgogi Taco

    From <a href="https://www.facebook.com/FarEastTG" target="_hplink">Far East Taco</a>: Marinated barbecued beef on a taco shell, served with kimchi (of course) and lime

  • Jack'd Pancakes

    From Pull'd: Triple layered red velvet pancakes loaded with slow-roasted and smoked pulled pork with a signature barbecue sauce and topped with a Jack Daniels-infused maple syrup. The booth is also offering 'Stack'd,' pulled pork between a German pretzel bun, topped with two seared three-cheese perogies and their signature coleslaw.

  • Epic Burger

    From Pull'd: Back by popular demand, the Epic Burger showcases a six-ounce beef patty, lettuce, tomato and cheese, sandwiched between two Krispy Kreme doughnuts. You can also, if you so choose, add in a fried egg and bacon.

  • Cones Of All Sorts

    From Just Cone It: A variety of foods in cones, including pepperoni pizza, shepherd's pie, "Olympus" (a salad of tomatoes, onions, feta, cucumber and oregano), and for dessert, "dirty bacon": Nutella and bacon.

  • So Many Kroketten

    From <a href="http://dutchfrites.ca/" target="_hplink">Dutch Frites</a>: These deep-fried delicious treats come in a variety of flavours, including (from left) Bitter Ballin' with beef ragout, some chicken croquettes with chicken ragout, Frickin' Dough, a sausage deep-fried, butterflied and served with curry ketchup, mayo and raw onions -- and of course, the round, puck-like banh mi with Thai noodles and nasi with fried rice.

  • Big Apple Fritters

    From Big Apple Fritter: Apples peeled, cored, slice and deep-fried in a special batter, then topped with cinnamon and icing sugar. There's also an option to add ice cream and/or maple syrups, while slice apples with caramel is available as a healthier choice.

  • Variety Of Savoury Pies

    From Thyme & Olives: Meat pie, spinach pie, cheese pie and a speciality (not pictured) of sesame pie with halloumi cheese

  • Raw Taco

    From Vie: A taco shell made from corn and red pepper, 'refried beans' made from walnut paste, lettuce and pico de gallo

  • Deep-Fried Mars Bar

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: Exactly what the description -- just wrapped in bacon.

  • Nutella BBBLT

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: Two pieces of back bacon, eight strips of bacon, lettuce, tomato and Nutella spread

  • 'Raw' Cupcake

    From Vie: A 'cupcake' made from a coconut base, cashew cream and pomegranate seeds.

  • Jack Daniel's Explosion

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: Bacon sausage stuffed with real bacon bits, infused with Jack Daniel's BBQ sauce, all wrapped in a bacon weave.

  • Bacon Sundae Funnel Cake

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: Ice cream sundae topped with bacon strips, real bacon bits, chocolate and caramel sauce.

  • Red Velvet Funnel Cake

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: Red velvet funnel cake with cream cheese icing.

  • Bacon-Wrapped Hot Dog

    From <a href="http://baconnation.net/" target="_hplink">Bacon Nation</a>: The deep-fried beer-battered bacon-wrapped hot dog on a stick.

  • Bacon Fudge

    From <a href="http://www.northwestfudgefactory.com/" target="_hplink">Northwest Fudge Factory</a>: Caramelized bacon put on top of fudge and drizzled in chocolate. Also available at the booth: Deep-fried fudge, which is fudge dipped in doughnut batter.

  • Biggie EX Pop

    From <a href="http://sweetnessbakery.ca/" target="_hplink">Sweetness Bakery</a>: A kabob-style dessert composed of chunks chocolate-covered cupcakes sandwiched between pieces of strawberry. The booth will also have squares, cookies and 24 varieties of cupcakes, including Brownie Explosion and Cotton Candy.

  • Krispy Marshmallow Treats

    From Sweet Treats: Doughnut batter filled with Rice Krispies and marshmallow, drizzled in either raspberry, vanilla, caramel or chocolate. Sweet Treats is also home to the famed deep-fried butter, and the "breakfast of champions": deep-fried butter and chocolate-covered bacon.