The municipal market in Seyé was shut down when 50 people were taken seriously ill after their traditional Sunday meal of cochinita pibil.
The crowd in front of a local doctor’s station at a pharmacy caught the notice of local police, who alerted the state health ministry.
Patients reported nausea, diarrhea, tachycardia, dizziness, blurred vision, high blood pressure and vomiting.
The incident highlighted Seyé’s lack of medical infrastructure. Authorities helped sick people get to alternate facilities, out of town, for medical care.
Seyé, which has a population of around 9,200, is 26 miles southeast of the Yucatán capital between Acanceh and Hocabá.