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
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.
