Infant botulism is caused by intestinal colonization by Clostridium bo
tulinum, C. barati or C. butyricum. Infant botulism has only rarely be
en reported outside the USA. A 3-month-old boy developed constipation,
lethargy, feeding difficulties and descending, severe, symmetric weak
ness. He was breastfed but had also been fed honey. Supportive care le
d to complete recovery. The serum was positive for C. botulinum toxin
type A-F (mouse toxin neutralization assay). A strain of C. botulinum
producing toxin type A and E was identified in the stool. C. botulinum
was identified in a jar of honey of the same brand as the honey fed t
o the patient.