Botulism In Adults And Children

Botulism In Adults And Children

Alternate Names

  • food poisoning

Definition

Botulism is a rare but potentially fatal disorder. It is caused by a toxin, or poison, produced by the bacteria Clostridium botulinum.

What is going on in the body?

Botulinum toxins are among the most powerful poisons known.
There are three forms of botulism:
  • Foodborne botulism can occur when a person eats food containingbacteria.
  • Infant botulism occurs when a baby ingests the spores of the bacteria. The spores then grow in the baby's intestine and produce toxin.
  • Wound botulism can be acquired when a wound becomes infected with the bacteria.
Black-tar heroin injections have been associated with wound botulism.

Risks

What are the causes and risks of the condition?

Botulism is caused by a toxin made by the bacteria. Foodborne botulism in adults and children is acquired by eating improperly preserved or stored food that contains the toxin. Home canned foods, especially vegetables which are not acidic, are a major source of foodborne botulism.
Infant botulism can be caused by eating honey, which may contain botulism spores. It can also be caused by eating food containing the toxin. Wound botulism occurs when the bacteria enter a wound, grow, and produce the toxin. Black-tar heroin injections are a frequent source of wound botulism.

Prevention

What can be done to prevent the condition?

Foods should be preserved or home canned only by those who know how to prevent food contamination. Strict hygienic procedures should be followed when preparing and storing food. Pressure cooking at 116 degrees Centigrade (240.8 degrees Fahrenheit) can destroy the bacteria. Food containers that bulge should be discarded.
Infants under twelve months of age should never be fed honey. Wounds should be carefully washed with antibacterial soap to prevent infection. Injectable street drugs should not be used.

Diagnosed

How is the condition diagnosed?

The bacteria can be detected in stool samples and in foods. The toxin also can be found in serum, which is the non-cellular (fluid) portion of the blood. Electromyography (EMG), the measurement of a muscle's electrical activity, shows abnormalities that can help distinguish botulism from other disorders. Brain scans and spinal fluid exams can also be helpful in making the diagnosis.

Long Term Effects

What are the long-term effects of the condition?

If botulism is untreated, individuals can suffer paralysis or respiratory failure. Even with treatment, recovery can be long, especially with infant botulism. Individuals can suffer complications from the paralysis, such as pneumonia or other infections.

Other Risks

What are the risks to others?

Botulism is not spread from person to person.

Treatments

What are the treatments for the condition?

Early diagnosis and treatment of botulism is important. It is important to remove any remaining contaminated food from the digestive system. The healthcare professional may order enemas, or induce vomiting.
Foodborne and wound botulism can be treated with an antitoxin. This medication blocks the action of toxin in the blood. Antitoxin does not reverse the damage already done, but it can slow or prevent further damage.
Intravenous fluids can be given if a person cannot swallow. A ventilator, or artificial breathing machine, is used if the person's diaphragm and chest muscles are weakened enough to cause difficulty breathing. Antibiotics are useful only in wound botulism and have no role in treating either of the other types.

Side Effects

What are the side effects of the treatments?

Many people experience allergic reactions to the antitoxin derived from horse serum. A human-derived antitoxin is available that does not cause as many reactions.

After Treatment

What happens after treatment for the condition?

With proper treatment, the body is often able to repair the damage over a period of several months. An individual may have fatigue and shortness of breath for several more years.

Monitor

How is the condition monitored?

Botulism is monitored with periodic visits to the healthcare professional, to whom any new or worsening symptoms should be reported.

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