As of November 19, 2025, this outbreak includes 31 infants with suspected or confirmed infant botulism from 15 states: Arizona 3, California 4, Idaho 1, Illinois 2, Kentucky 1, Maine 1, Michigan 1, Minnesota 2, North Carolina 2, New Jersey 1, Oregon 3, Pennsylvania 1, Rhode Island 1, Texas 6 and Washington 2
Laboratory confirmation for some cases is ongoing. For 27 cases with illness onset information available, illnesses started on dates ranging from August 9 to November 13, 2025. All 31 infants were hospitalized and treated with BabyBIG®. No deaths have been reported. For 23 infants with age and 24 with sex information available, they range in age from 16 to 200 days and 11 (46%) are female.
