Cases Jump in Botulism Outbreak Tied to Baby Formula
Introduction to the Outbreak
More than 30 babies in 15 states have been sickened in a growing outbreak of infant botulism linked to recalled ByHeart infant formula, federal health officials said Wednesday. The U.S. Centers for Disease Control and Prevention reported 31 cases of confirmed or suspected illness in babies who consumed ByHeart formula since August. The most recent case was reported on Nov. 13. No deaths have been reported in the outbreak, which was announced Nov. 8.
The Outbreak Begins
The outbreak has sickened babies aged about 2 weeks to about 6 months, the FDA said. All the infants were hospitalized after consuming ByHeart powdered formula. California officials confirmed that a sample from an open can of ByHeart baby formula fed to an infant who fell ill contained the type of bacteria that can lead to illness. ByHeart officials said they recalled their products “in close collaboration” with the FDA, despite the fact that no previously unopened product tested positive for the illness-causing bacteria.
Causes of Infant Botulism
Infant botulism typically affects fewer than 200 babies in the U.S. each year. As of Sept. 20, 133 cases had been reported in the U.S. according to the most recent Centers for Disease Control and Prevention records. There were 145 cases reported all of last year. The infection is caused by a type of bacteria that produces a toxin in the large intestine. The bacterium is spread through hardy spores present in the environment that can cause serious illness, including paralysis. Infants are particularly vulnerable to infection because their gut microbiomes are not developed enough to prevent the spores from germinating and producing the toxin.
Infant Botulism Treatment
The only treatment is known as BabyBIG, an IV medication made from the pooled blood plasma of adults immunized against botulism. California’s infant botulism program developed the product and is the sole source worldwide. BabyBIG works to shorten hospital stays and decrease the severity of illness in babies with botulism. Because the infection can affect the ability to breathe, infants often need to be placed on ventilators. All of the children in the ByHeart outbreak have received the medication, the CDC said. The treatment costs about $69,300 per child, California officials said.
Potential Impact on U.S. Formula Supplies
There is little danger of infant formula shortages because ByHeart represents a small share of the market. That’s far different from the crises in late 2021 and 2022, when four infants were sickened by a different germ after consuming formula made by Abbott Nutrition. Two of the babies died. No direct link was found between the Abbott products and the infections caused by a different germ, cronobacter sakazakii, but FDA officials closed the company’s Michigan plant after contamination and other problems were detected.
Reviewing Infant Formula Ingredients
Federal health officials have vowed to overhaul the U.S. food supply and are taking a new look at infant formula. Health Secretary Robert F. Kennedy Jr. has directed the FDA to review the nutrients and other ingredients in infant formula, which fills the bottles of millions of American babies. The effort, dubbed “Operation Stork Speed,” is the first deep look at the ingredients since 1998. FDA officials are reviewing comments from industry, health experts and public to decide next steps.
Conclusion
The outbreak of infant botulism linked to ByHeart infant formula has raised concerns about the safety of baby formula. While the number of cases is relatively small, the severity of the illness and the potential for long-term effects make it a significant public health issue. Parents and caregivers should be aware of the risks and take steps to protect their infants, including checking the formula for recalls and following proper preparation and storage procedures.
FAQs
- Q: What is infant botulism?
A: Infant botulism is a rare but serious illness caused by a type of bacteria that produces a toxin in the large intestine. - Q: What are the symptoms of infant botulism?
A: Symptoms can include poor feeding, loss of head control, drooping eyelids, and a flat facial expression. Babies may feel “floppy” and can have problems swallowing or breathing. - Q: How is infant botulism treated?
A: The only treatment is known as BabyBIG, an IV medication made from the pooled blood plasma of adults immunized against botulism. - Q: Can infant botulism be prevented?
A: While there is no sure way to prevent infant botulism, parents and caregivers can reduce the risk by checking the formula for recalls, following proper preparation and storage procedures, and being aware of the symptoms of the illness.


