What was supposed to be a joyful occasion turned into tummy turmoil for some unlucky wedding guests.

Over 100 guests at a wedding reception in Mexico turned violently ill during a four-course meal that landed 80 people in the hospital.

Guest Aranza Rodriguez was present at the ceremony Saturday night in the central city of Cuernavaca, Mexico, and was one of the individuals rushed to a Red Cross hospital to be treated for a bacterial infection.

While the wedding began around 4 p.m., the dinner was to be served at 6 p.m. Rodriguez said she arrived at the wedding venue between 8 and 9 p.m. and noticed that many of the guests were experiencing "aggravated symptoms" that included headaches, stomach pain, vomiting, and diarrhea.

However, she still selected a meal and began dining when she noticed ambulances starting to arrive at the scene around 10 p.m.

Rodriguez told the Daily Mail she had started with wild mushrooms, goat cheese, and tomato coulis as appetizers.

As her main dish, she was served chicken breast stuffed with spinach, tarragon, sweet potato puree, and winter asparagus.

She said that male guests were served a different menu, which included meat with a whisky sauce.

While she's unable to determine which of the foods made her ill, she remembers that the wild mushrooms had the aftertaste of a "very strong chemical."

A TikTok video that went viral showed a paramedic assisting a guest who was hunched over a chair while another used paper as a fan to help cool them down.

Footage on social media captured the frenzy among paramedics, who at one point were seen providing assistance to two women crouched on a chair, having seemingly just vomited.

Rodríguez revealed she had to be carried away and was unaware of how she made it to one of the several hospitals.

Eighty people were treated for the bacterial infection and released within four to five hours.