The ByHeart formula infant botulism outbreak has ended with 48 sick, according to the CDC. This outbreak case count has been confusing from the beginning. In the last update issued on December 11, 2025, there were allegedly 51 babies sick. And the FDA update lists 28 sick. But the FDA numbers include 28 cases of confirmed botulism, 20 cases of probable botulism, and three cases of infants who were eventually diagnosed with another illness. The CDC counts all illnesses except those diagnosed with something else. The last update also included 19 states, but the state count hs been reduced t0 17. One thing remains true: all ByHeart infant formulas were recalled as a result of this outbreak. The final case count by state is: Arizona (5), California (12), Idaho (2), Illinois (2), … [Read more...]
ByHeart Botulism Outbreak Strain Found In Whole Milk Powder
The ByHeart botulism outbreak strain has been found in a sample of organic whole milk powder used to make the infant formula, according to the FDA. The outbreak strain was also found in a closed product sample of the formula obtained by the FDA. The outbreak strain is Type A. The case count has not changed since December 15, 2025. The case count by state is: Arizona (5), California (12), Idaho (2), Illinois (2), Kentucky (1), Massachusetts (2), Maine (1), Michigan (1) Minnesota (3), North Carolina (2), New Jersey (1), Ohio (1), Oregon (4), Pennsylvania (1), Rhode Island (1), Texas (8), Virginia (1), Washington (2), and Wisconsin (1). The infants range in age from 16 to 264 days. Illness onset dates range from December 24, 2023 to December 1, 2025. All of the infants were treated … [Read more...]
Number 5 Outbreak of 2025: ByHeart Infant Formula Botulism
The number 5 outbreak of 2025 is the Byheart infant formula botulism outbreak that is still ongoing. There are at least 51 infants in 19 states who have been sickened in this outbreak; all have been hospitalized. The case count by state is: Arizona (5), California (12), Idaho (2), Illinois (2), Kentucky (1), Massachusetts (2), Maine (1), Michigan (1) Minnesota (3), North Carolina (2), New Jersey (1), Ohio (1), Oregon (4), Pennsylvania (1), Rhode Island (1), Texas (8), Virginia (1), Washington (2), and Wisconsin (1). The infants range in age from 16 to 264 days. Illness onset dates range from December 24, 2023 to December 1, 2025. All of the infants were treated with BabyBIG®, the FDA-approved treatment for this infection developed by the California Department of Health. The FDA … [Read more...]
ByHeart Infant Botulism Outbreak Has Sickened 51 Babies
The ByHeart infant botulism outbreak has now sickened 51 babies in 19 states, according to the CDC. All of the patients have been hospitalized. That is an increase of 12 new cases, 12 new hospitalizations, and one new state since the last update was issued a week ago. The new state is Ohio. The case count by state is: Arizona (5), California (12), Idaho (2), Illinois (2), Kentucky (1), Massachusetts (2), Maine (1), Michigan (1) Minnesota (3), North Carolina (2), New Jersey (1), Ohio (1), Oregon (4), Pennsylvania (1), Rhode Island (1), Texas (8), Virginia (1), Washington (2), and Wisconsin (1). The infants range in age from 16 to 264 days. Illness onset dates range from December 24, 2023 to December 1, 2025. All of the infants were hospitalized and treated with BabyBIG®, the … [Read more...]
ByHeart Formula Botulism Outbreak Sickens Two More Infants
The ByHeart formula botulism outbreak has sickened two more infants, bringing the total of sick babies to 39, according to the CDC. That is an increase from 37 sick since the last update was issued on November 26, 2025. And one more state is included: Virginia. The case count by state is: Arizona (3), California (5), Idaho (1), Illinois (2), Kentucky (1), Massachusetts (2), Maine (1), Michigan (1) Minnesota (2), North Carolina (2), New Jersey (1), Oregon (4), Pennsylvania (1), Rhode Island (1), Texas (8), Virginia (1), Washington (2), and Wisconsin (1). For 38 infants whose age was made available to public health officials, they range in age from 16 to 264 days. Illness onset dates range from August 9 to November 19, 2025 for 38 of these infants. All of the infants were hospitalized … [Read more...]
ByHeart Formula Botulism Outbreak Case Count Up to 37 Infants
The ByHeart formula botulism outbreak case count has now sickened 37 infants in 17 states, according to the Centers for Disease Control and Prevention (CDC). That's an increase of six new patients, six new hospitalizations, and two new states since the last update was issued on November 20, 2025. The new states are Massachusetts and Wisconsin. The case count by state is: Arizona (3), California (5), Idaho (1), Illinois (2), Kentucky (1), Massachusetts (1), Maine (1), Michigan (1) Minnesota (2), North Carolina (2), New Jersey (1), Oregon (3), Pennsylvania (1), Rhode Island (1), Texas (8), Washington (2), and Wisconsin (1). For 35 infants whose age was made available to public health officials, they range in age from 16 to 264 days. Illness onset dates range from August 9 to November … [Read more...]
Recalled ByHeart Infant Formula Still Being Sold at Some Retailers
The FDA is claiming that recalled ByHeart infant formula is still being sold at some major retail stores. No recalled food item should ever be available for consumers to purchase. This product is linked to an infant botulism outbreak that has sickened at least 31 babies in 15 states. Reports have come in that the recalled formula is still on the shelves in multiple states, including Walmart, Target, and Kroger stores, and at one or more Sprouts Organic Market, Safeway, Jewel-Osco, Shaw's, and Star Market. All of ByHeart infant formula products have been recalled. The case count by state is: 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), … [Read more...]
Byheart Infant Formula Botulism Outbreak Has Sickened 31
The Byheart Infant Formula botulism outbreak has sickened 31 babies as of November 19, 2025, according to the CDC, an increase of eight more patients since the last update was issued on November 14, 2025. All eight infants have been hospitalized, and two more states are added to the case count. The new states are Idaho and Maine. The case count by state is: 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). For 23 infants whose age was made available to public health officials, they range in age from 16 to 200 days. Illness onset dates range from August 9 to November 13, 2025 for 27 of these infants. All of the … [Read more...]
California Sets Up ByHeart Infant Formula Botulism Hotline
California has set up a ByHeart Infant Formula botulism hotline to answer questions and concerns of parents and caregivers about the outbreak that has sickened 23 infants in 13 states. This hotline was created since the Infant Botulism and Prevention Program (IBTPP) has been receiving a very high volume of emails and calls. The hotline number is 1-833-398-2022. It is open seven days a week from 7:00 am to 11:00 pm Pacific Time. But it's important that if your child is showing signs of infant botulism, you should contact your healthcare provider. Seek medical care immediately if you are very concerned. The case count by state is: Arizona (3), California (3), Illinois (2), Kentucky (1), Michigan (1) Minnesota (2), North Carolina (2), New Jersey (1), Oregon (2), Pennsylvania (1), … [Read more...]











