Symptoms of foodborne botulism in adults and children usually begin within 18 to 36 hours of eating the contaminated food. However, symptoms can occur as early as 6 hours after eating the food, or as long as 10 days later. The symptoms include the following:
Symptoms of wound botulism usually begin 4 to 14 days after the bacteria is introduced into the wound. The wound may be reddened and painful and may drain pus.
Symptoms of infant botulism include: