Fair and Petting Zoo Safety

A resource for fair and petty zoo legal cases and outbreak prevention, sponsored by Marler Clark

1997 Minnesota Zoo Cryptosporidiosis Outbreak

In July 1997, the Minnesota Department of Health (MDH) reported an outbreak of cryptosporidiosis among children who visited the Minnesota Zoo (MMWR Weekly, October, 1998). A total of 369 cases were reported, of which 73 had Cryptosporidium identified from stool samples.  The onset of illness (i.e. vomiting or diarrhea) occurred 3 to 15 days after exposure to the contaminated zoo fountain.