In infants, symptoms include constipation, a flat facial expression, poor feeding, a weak cry, decreased movement, trouble swallowing, excessive drooling, muscle weakness,
[kidshealth.org]
Infants with botulism appear lethargic, feed poorly, are constipated, have a weak cry and poor muscle tone. How soon after exposure would symptoms develop?
[health.ny.gov]
Symptoms in an infant include lethargy, poor appetite, constipation, drooling, drooping eyelids, a weak cry, and paralysis.
[foodborneillness.com]