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Updated: Aug 17, 2026

Assessment of Intestinal Transcytosis of Neonatal Escherichia coli Bacteremia Isolates
Published on: February 17, 2023
Cases of emesis associated with bacterial contamination of an infant breakfast cereal product
Le H Duc1, Tran C Dong, Niall A Logan
1School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey TW20 0EX, UK.
Abstract:
A commercial product for infants containing cereal mixed with dried infant formula was diagnosed as producing rapid projectile vomiting in two infants. Analysis of multiple samples of the cereal product revealed significant contamination with two spore-forming species, Bacillus subtilis and a strain of Bacillus cereus. The latter is the most likely cause of the emetic food poisoning, but we were unable to detect B. cereus emetic toxin. This raises the possibility of the cause being either a new cereulide-type toxin, or the bacterial load, in which case the presence of B. subtilis could have been a contributing factor.
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