http://www.bt.cdc.gov/DocumentsApp/FactsAbout/FactsAbout.asp
Facts about Botulism
Botulism is a muscle-paralyzing disease caused by a toxin made by a bacterium called Clostridium botulinum.
There are three main kinds of
botulism:
· Foodborne botulism occurs
when a person ingests pre-formed toxin that leads to illness within a few hours
to days. Foodborne botulism is a public health emergency because the
contaminated food may still be available to other persons besides the patient.
· Infant botulism occurs in a small number of susceptible infants each year who harbor C. botulinum in their intestinal tract.
· Wound botulism occurs when wounds are infected with C. botulinum
that secretes the toxin.
With
foodborne botulism, symptoms
begin within 6 hours to 2 weeks (most commonly between 12 and 36 hours) after
eating toxin-containing food. Symptoms of botulism include double vision, blurred
vision, drooping eyelids, slurred speech, difficulty swallowing, dry mouth,
muscle weakness that always descends through the body: first shoulders are
affected, then upper arms, lower arms, thighs, calves, etc. Paralysis of
breathing muscles can cause a person to stop breathing and die, unless
assistance with breathing (mechanical ventilation) is provided.
Botulism
is not spread from one person to another. Foodborne botulism can occur in all
age groups.
A
supply of antitoxin against botulism is maintained by CDC. The antitoxin is effective in reducing the
severity of symptoms if administered early in the course of the disease. Most
patients eventually recover after weeks to months of supportive care.