More than 300 people were sickened with Clostridium perfringens from a April 5 wedding in Sullivan, MO, according to the Franklin County Health Department.
Health officials told The Missourian that the cause was gravy that took too long to cool down, allowing the bacteria to grow and emit toxins.
Hours after the wedding, guests were stricken with abdominal cramps and diarrhea.
After food and stool samples tested negative for Norovirus, the state lab sent the samples to the U.S. Centers for Disease Control and Prevention, which confirmed the presence of Clostridium perfringens.
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