BOTULISM IN ENGLISH
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BOTULISM-
Ø Human botulism is a serious but relatively rare disorder
caused by a potent preformed toxins produced by a bacteria Clostridium
botulinum. It is main cause of food poisioing
Ø There are 3 forms of botulism:
Ø Foodborne botulism
Ø Wound botulism, and
Ø Intestinal
botulism.
CAUSES OF BOTULIMS-
Ø Botulism is caused by a bacteria Clostridium botulinum
which is an anaerobic, rod-shaped spore-forming bacteria that
produces a protein with characteristic neurotoxicity.
Ø There are 7
recognized types of Clostridium botulinum. Out of these seven forms types
A, B, E, rarely F and possibly G cause human botulism.
Ø Foodborne botulism is a severe intoxication resulting
from ingestion of preformed toxin present in contaminated food.
CLINICAL MANIFESTATIONS-
Ø Signs and symptoms
of botulism are-
Ø Marked fatigue, weakness and vertigo.
Ø Blurred vision and dry mouth,
Ø Difficulty in
swallowing and speaking.
Ø Vomiting,
diarrhea, constipation and abdominal swelling may also occur.
Ø Neurological
symptoms ( paralysis of muscles) always descend through the body.
Ø shoulders are
first affected, then upper arms, lower arms, thighs, calves, etc.
Ø Paralysis of breathing muscles can cause loss of
breathing and death unless assistance with breathing (mechanical ventilation)
is provided.
Ø Intestinal (infant) botulism is rare; it affects children
below 1 years of age. Ingested spores
germinate and produce bacteria that reproduce in the gut and release toxin.
Ø Clinical symptoms in infants include constipation,
difficulty in sucking and breathing, loss of appetite, weakness, week cry,
irritability and loss of head control.
Ø Wound botulism, a rare disease, occurs when spores get
into an open wound and reproduce in an anaerobic environment. Sign and Symptoms
are similar to the foodborne botulism, but may take up to 2 weeks to appear.
DIAGNOSTIC INVESTIGATION-
Ø Diagnosis of foodborne botulism is made by identification
of botulinum toxin in serum, stool, gastric aspirate or incriminated food; or
Ø Through culture of C. botulinum from gastric
aspirate or stool in a clinical case.
TREATMENT-
Ø Dilution of toxin-
Ø For cases of foodborne botulism, the digestive system is cleaned by inducing
vomiting and giving medications to induce bowel movements.
Ø for the patient having botulism in a wound, the doctor
may need to remove infected tissue surgically.
Ø Use of anti-toxin -
Ø Antitoxin can not reverse the damage but it reduces the risk of complications. The
antitoxin attaches itself to toxin that's still circulating in bloodstream and
keeps it from harming the nerves.
Ø Antibiotics are recommended for the treatment of wound
botulism and in case of breathing difficulty mechanical ventilation may be
provided.
PREVENTION-
Ø Good practices in food preparation (food hygiene) is a
very good method of prevention.
Ø Refrigeration combined with control of salt content
and/or acidity will prevent the growth or formation of toxin.
Ø The patient’s clothing must be removed and stored in
plastic bags until it can be washed with soap and water. The patient must
shower thoroughly.
Ø Food and water samples associated with suspect cases must
be obtained immediately, stored in sealed containers and sent to reference
laboratories.
Ø Reporting to local health authority about suspected and confirmed cases obligatory in
most countries. It help in starting control measures in time and further spread
of diseases
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